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It has long been thought that the Xyclops chip, which contains the BIOS on a v1.6 motherboard, is not flashable. However I recently discovered it has a serial port with a variety of interesting commands. It supports dumping the BIOS as well as the Intel 8051 code that runs the SMC functions of the chip. And just like the other Xbox versions that have the TSOP flash, we can reprogram the BIOS on the v1.6. In one way this mod is better than your typical TSOP flash because it's easy to recover from if you screw it up. The serial port will still be available. Tutorial Required items: 3.3V USB to UART adapter. You can find many of these available online at very low prices. See if you can get one that has a TX resistor value lower than 1k because the Xbox's RX has a 1k pulldown. v1.6 Xbox with Xyclops marked A-A02. A-B01 is not supported. Soldering iron Either the GUI for Windows or the command-line script: GUI Download XycloModGUI by OGXLABS https://www.ogxlabs.com/xyclomodgui Script Python installed on your PC Download the script https://github.com/Prehistoricman/Xbox_SMC/blob/master/Xyclops/xyclops_flasher.py A 256KiB BIOS bin file Steps: Connect your USB to UART adapter to the Xbox. This can be done either by connecting to the AV port, or by opening the Xbox and using internal connections. Internal connections Xyclops pin 29 is DEBUG. Wire it to the 3.3V standby voltage. Xyclops pin 64 is TXD. Wire it to the adapter's RX pin. Either: Near Xyclops: OR under the AV port: Xyclops pin 63 is RXD. Wire it to the adapter's TX pin. Either: Top side, near AV port: OR under the AV port: Connect ground to the adapter's GND pin. You can use the xbox metal case, any screw holding the motherboard down, or pin 2 of the LPC header (see pin layout here). AV cable - not advisable! See AV plug diagram here https://xboxdevwiki.net/AV_Cables Pin 5 is DEBUG. Wire this to 3.3V. Pin 18 is TXD. Wire this to the adapter's RX pin. Pin 6 is RXD. Wire this to the adapter's TX pin. Remove resistors below the AV port: R5M3, R4M10. This will affect the video mode recognition and can prevent normal display, so they should be replaced after the mod is complete. Connect any ground pin (such as pin 6, 7, or to the adapter's GND pin. If you cut LFRAME to do a modchip install, you will have to reconnect it. Plug in the USB. It's better to do this before powering on the Xbox Plug in the Xbox. It can be left in standby. Identify what serial port your adapter has. On Windows you can expect it to something like COM5. GUI method: Run the XycloModGUI exe Select the COM port if you know it Click the Connect to Xyclops button Click Browse... to select the BIOS to flash Click Start Selected Operation to flash the BIOS to your Xbox. It should take about 6 minutes Script method: Install Python 3 if you haven't got it already Open cmd, powershell, bash, or whatever the terminal is on your PC. Execute the script by writing python xyclops_flasher.py your_bios.bin COM5 to the terminal, replacing your_bios.bin with the path to your BIOS file, and COM5 with your serial port. Press enter Follow the on-screen text. It should say Xyclops communication established and ask if you want to erase the flash. Once the connection has been made, or even attempted, you may be unable to turn on or off the Xbox. That's normal. The SMC gets frozen while the serial is active. The Xyclops can get upset and stop responding sometimes. If you can't get communication, try unplugging the Xbox for 10 seconds. If you get erase timeout, make sure you made the GND connection. If you can't get communication, then your serial adapter might have too much internal resistance. Identify its TX resistor and reduce it to ~500 ohms. The flashing process takes about 2 minutes, and the verification (if you want to do it) takes another 2 minutes. If you want to verify again, use the -v option: python xyclops_flasher.py your_bios.bin COM5 -v The Xbox power button should work again, so try turning it on. If you get video issues (like greyscale video) and you removed two resistors in step 1.2.5, you will need to place the resistors back. Disconnect the DEBUG wire for enhanced stability. The Xyclops will freeze whenever it sees any activity on the RX pin. FAQ Can we use a BIOS bigger than 256KiB? Not on a retail xbox. Some rare devkits may be able to do 512KiB but I have not confirmed that. I ran the script and my Xbox won't turn on! Yes, the SMC will freeze when it receives serial communication. The script should resolve that if it exits successfully, so I must assume it failed. You can unplug your Xbox for 10 seconds and plug it back in to reset and try again. Can this be done via a software method? Not to my knowledge, but it is rumoured to have been discovered. Technically the answer is yes, but it involves using the serial first and then reprogramming the SMC (advanced). What else can it do? The Xyclops serial port is able to do a lot of low-level actions on the SMC. For example, it can 'press' the front panel buttons, change fan speed, change LED colours. It can also potentially do some hacky things such as spoofing the video cable mode, or bypassing the boot challenge (FRAG). We are also able to re-program the SMC which could lead to some more advanced mods for specific and niche purposes. Through the AV port??? Yeah I know right? We can't be sure why Microsoft made it this way. It's too slow for factory programming AND there's those resistors preventing it on retail units. It could definitely have expedited the development process of Xyclops, but that doesn't explain why it was left present in the retail motherboard.

I was playing with a different 007 Agent Under Fire game save hack and while flashing a new BIOS on a version 1.0 Xbox I flashed a 256k BIOS(STUPID I know). Yep it was FRAGing afterwards now you can either fit a mod chip and be done with it or do a 3 wire flash recovery by following the instructions that can be found by working the Google on the interweb. The instructions say 1 wire soldered to ground and the other 2 get soldered to points on the bottom of the mother board(pain in the butt as you now have to remove the PCB again), Me been lazy and not wanting to remove the PCB again found an easy way to do the 3 wire trick. {pic 1} You need a test lead with alligator clips both ends and a pin. {pic 2} Clip the pin in one end and the other on the metal shield(you did leave the metal shield in didn't you)and the point of the pin is gently held on pin 1 and 2 of the TSOP chip. {pic 3} Power on the Xbox and if all goes well your Xbox boots. Remove the pin that's shorting the 2 pins to ground. Now flash the correct 1024k (1 meg) BIOS. If you don't like the idea of shorting the pins on the TSOP IC the points in the pic below show the same points on the top of the PCB and the bottom of the PCB. {pic 4} 1 2 3 4 Inside the box on lower right of pic 4 are the same points as in pic 1 On side note I did try a mod chip and with some BIOS's the Xbox booted but with no video out but the Xbox was still showing on my home network and I was still able to network in to the box. SS Dave Those who can hard-mod, Those who can’t soft-mod. Ps If you like it don't forget to say thanks and please give me any feedback good or bad!

Im running a modox pico with prometheos + cerbios + analog to hdmi from electron shepherd. I want to force all video to 480p including the tsop original dash. Any easy way?

Ive heard that a major part of the process is booting off of the hexen disc to get it set up. My disc drive is currently non-functional. How would I go about doing a TSOP flash with my Xbox in this state? is it possible? Any help is greatly appreciated!

Hi, I have a revision 1.0 Xbox that I originally softmodded. It is now hardmodded and I would like to flash the original 4034 stock bios back onto the TSOP. I was going to use the method in this post: But I got confused when I saw this warning in the manual (attached). I tried the method suggested in the warning first, and was not successful. Am I good to use the TSOP flasher when my console is already softmodded and hardmodded? To restore the TSOP to stock bios?

I started off soft modding my v1.4 Xbox with Rocky5 via old jump drive. My disc drive is a Samsung brand and does not work, (I have a working Philips drive but for some reason it will not work in this Xbox). I decided to do the TSOP flash by soldering the points on the board. I have a Winbond chip and flashed it using Xblast OS via FTP. I recently learned not to Hardmod a softmodded Xbox and this may be why I am unable to boot past the Bios splash screen. Since my drive cannot read discs I am unable to format the drive with the Hexen disc I have so I am not sure what other options I have. I am unable to FTP to the HDD, and FatXplorer is unable to see the drive because it is locked (I'm assuming). I still have the old IDE drive it came with but I get the same results when trying to boot. If I can somehow get the Philips drive working I think I can fix it with the Hexen 2021 Disc I have but not sure why it wont work. Any help would be really appreciated. Xbox details: Xbox version 1.4 TSOP chip: Winbond chip Bios used: EvoX.m8.480p.ece.fg.67.noDVD.XBMC.256.bin Flashing method: Xblast OS EEPROM backup is on the E drive but cannot get to it

Hello guys, hope you are all fine i am here for some help from you guys in terms of my old xbox from 2003. It has a modchip see below Picture from the complete mainboard As far as i see it runs an old xecuter 2 bios with evolutionX dashboard. I replaced the capacitor for the clock and the thermal paste already, but i wanted to upgrade the 100GB IDE HDD to a bigger one. Saw that there is the cerbios bios, which is currently the way to go. I am familiar with modding/flashing consoles, but never did something on the OG xbox. So my question is, which bios, installer cd ect. i need to flash this xbox. Also question from my side, i heard that upgrading to an S-ATA makes the xbox sometimes freezing, is that true? Thank you very much

Everything was just working fine. Cerbios 2.3.2 was successfully flashed and I had the default xunleash dash on boot. So first I flashed the Cerbios 2.4.1 bios using Xblast OS. Because I wanted the lasted version becuase you could change the UDMA level through the Cerbios.ini. So I flashed it, was successful and then copied over the update cerbios.ini and changed the UDMA value from 2 to 5. Then I unlocked and removed the HDD and formatted it for Cerbios through Fatxplorer to clean the old softmod files off. Then I put it back in the xbox along with the ogxbox installer 2021 disc. I popped in the ogxbox installer 2021 disc. Installed dashboards and set one as my main single dashboard and then when I rebooted I got an error 13 from Cerbios saying something about the UDMA level. And then after that it won’t boot anymore. No splash screen straight frag now and cannot load discs. What did I F up?

Do I have to flash the TSOP or is it a case of having a fake chip and is not flashable?

Hey there, I have an Xbox rev 1.0. With a cheapmod based modchip (SST49LF020), with BIOS Evo.XD6 EjectFix. I want to replace the current 120GB HDD with a bigger one. But the issue is that, I'm not able to flash with another custom BIOS.

Hello everyone! This is my first attempt TSOPing an ogxbox and I have a problem. I am running a 1.4 (I guess) with a winbond chip, which I successfully softmodded with the endgame exploit and rocky5's softmodding tool. I have also removed the clock capacitor. I have done the wiring work in order to TSOP (I used copper tape instead of solder, pics below) which I double checked with a polymeter. According to the cerbios manual, In order to flash a winbond chip, you need to use xblastos. So the options I am selecting from the ogxbox cerbios disc v2.3.2 are - flash cerbios (softmod users) - flash cerbios udma2 (pal users) (I am in Europe and I have a stock hdd) then I choose the xblastos option As soon as I enter the xblastos menu I see this and I am unable to do anything. I have to restart the console. What could be causing this? The console is working just fine. My Bios checker: https://ibb.co/k0Bn6Kk My work on the board: https://ibb.co/HDYFx7Y

Hi, So i have installed an old duo x2 modchip in a stock xbox and the loading screen says evox in the corner so i imagine i've done it correctly. I plan to set up a new sata drive using my pc and have researched how to do this. My remaining question is, i want to use cerbios, and fatxplorer wants to know if i'm using cerbios when formatting the new drive. Is there a way for me to update the bios on the modchip to cerbios, without an installation disc? Can this be done with a usb drive or by plugging the xbox directly into my pc via ethernet?

Hello, I have an original Xbox (can't determine which version, looks like 1.4 or 1.5) modded with Aladdin Advance. It worked well until today - I decided to update the bios with EvoX D.6 EjectFix (checksum 74c6235497f474bf88b54b3fc52a20b2). Bin file with it was placed on my HDD so I presumed that it's ok to flash it. After flashing, my Xbox turned off and when I turned it on, it startet to FRAG (two green flashes, then green/red flash with no video). What have I done? How I can undone it?

This guide and pictures taken from: http://www.biline.ca/xbox_solder.htm TSOP Flashing Unlock points if you are unsure which Xbox version you have click Here TSOP unlock points for version 1.0/1.1 Xbox This is the top of the motherboard Connect the two solder pads at R7D3 as in photo above. This is the bottom side of motherboard Connect the two solder pads at R7R3 as in photo above. All Ver 1.0/1.1 Xbox's with a 'SHARP' TSOP chip must also connect the additional red wire as in the photo above. All other TSOP's DO NOT require this step. TSOP Unlock points for all Versions 1.2/1.3/1.4/1.5/ Xbox's This is the top side of the motherboard These Xbox's have both points located on the top of the motherboard, for the first point connect the two solder pads at R7D10 as in photo above. For the second point locate the junction between R7D2 and R7D1 and connect the two solder pads as in the photo above. After the solder points are completed you should re-assemble your xbox (but leave the top cover off) when the power button is pressed it should boot normally as it did before you started. Note if you get the message TSOP write protected while attempting to Flash the TSOP you might need to check and resolder the points to ensure a good connection was m while attempting to Flash the TSOP you might need to check and resolder the points to ensure a good connection was made. To split Split a 1MB TSOP (v1.0, v1.1) into 4 banks of 256k, the following picture explains how to accomplish this: Note: If you have a 1.6/1.6b Xbox, it has no TSOP and therefore you cannot flash it. You will have to install a modchip or softmod.

Hi guys now im recently splitting 1.0 bios to 4 banks, i backup bios with evox but gives me 1024 size backup I know that with raincoat it doesnt autosize to 1024kb but the problem i dont know how to use it Many questions... 1 could i split the 1024 bios to 4x 256kb bios? or 2x 512kb ones? 2 can i backup 256kb or 512kb bios size (tsop splitted one) 3 is there any option to have a 256kb backup of 1.0 1.1 bios xbox? last, is there any option or tutorial to get raincoat working? or to make backup with raincoat?

Requirements.Working Xbox with a Pinheader Install and a Working Modchip with a Hacked BiosHackDaBox Re-Flash DiscWith the working Xbox turned off Remove the lid , the screws from the hard drive bay and DVD-ROM drive. Remove the hard drive (still connected ), lift it up and over slightly, now lift the DVD-ROM drive up ( still connected) and spin it around to face the opposite way. So now the DVD-ROM is facing the wrong way round but still connected . Support the DVD with something underneath, so it sits level. Now put the hard drive bay back where it used to be ( covering up the power supply ).WARNING NEVER TOUCH THE POWER SUPPLY AREA AS IT CAN KILL YOU !This procedure is safe the way I have described above because you have access to the Modchip area . The chip should be plugged onto a pinheader ? If not you can not re-flash this way.Now remove the wire that goes to the D0 pad on the Modchip itself. Unscrew the screw near the LPC area and put the D0 wire under the screw and carefully tighten it up. You can solder the wire to the circle around the screw if you wish. remove any wire you have connecting the chip to the Xbox motherboard but leave the chip plugged into the pinheader.Now depending on your chip type you need to make the chip enabled all the time.On DuoX 2 solder a wire between the BT pad on the chip and pin 9 on the chip (This is point G on the official Duo diagram) see the picture below coutesy of cubistproject.On Aladdin solder a wire between BT pad on the chip and Pin 2 on the chipOn Spiderchip simply leave off the switch.Note : You need to do this to the good chip in the Xbox and the ones you intend to Flash.Turn on the Xbox with the good chip in and let it boot up and then load HackDaBox Re-flash Disc Choose Re-flash Spiderchip ( it works fine on DuoX 2 and Aladdin ). Choose the Xbox version you wish to use the flashed chip on. E.g. 1.0 - 1.5 or V. 1.6 but don't hit A to flash yet.Note Evoxdash or Slayers or your preffered Flash utility can be used with this method.Now carefully pull the Modchip off the pin header with the power still on ( note only 3.3 volts goes into the Modchip so it will not electrocute you.Now carefully line up the chip you are going to flash and then push it on the pinheader. Never try and force it on , double check it's lined up properly and it should slide onto the pinheader easily.Now go ahead and flash the chip now. The Xbox should turn off after the successful flash. Once it turns off ,turn it back on and the previously bad flashed chip should now boot the new flashed bios that you just put on it.If you picked Xbox V.1.6 and your Modchip is not in a V.1.6 it may not boot reliably so try it in the V.1.6 box.Remember to put all the original wires back to the chip, and remove any links you have made. In other words put the install back to the manufacturers recommendation.

So, I got a modded Xbox off of a friend a few years back. It's been collecting dust on a shelf while i was modding 360s and messing with other things. Some console info: Motherboard Revision: 1.0 Kernel Version: 1.0.3944.1 TSOP Chip: ST-M29F080A In January i decided to play around with it and upgraded its mod with Rocky5s Softmodding Tool, although i had to use the Hardmod method show in MrMario2011s guide. I decided I want to hardmod the system and TSOP Flash rather than run the softmod. While digging through the file explorer on XBMC i found evidence of SmartXX which a google search turned up a modchip. So, I took to r/originalxbox and thanks to the help of @KaosEngineerfound that it must be a softmodded system and I'm good to flash the TSOP. I went on to download and burn a DVD-R with Bios Checker and burned another with the .iso file found in the download of "OGXbox Cerbios Disc v2.3.2". I bridged the R7D3 points on the top of the board and the R7R3 points on the back of the board, reassembled and popped on bios checker to get the info. I then popped in the OGXbox Cerbios v2.3.2. Once the disc launched, I read through the "Read Me" files on my PC and on the disc. After reading, I selected the following options: "Cerbios Disc - Static IP & No BFM Mode" --> "Flash Cerbios with XBlastOS" --> "Flash Cerbios UDMA2" --> "Flash Cerbios UDMA2 256KB" Once in XBlastOS I chose "Boot Onboard Bios". No dice... So, I copied/unpacked a clean .ini to my C partition, ran through the steps again and got to XBlastOS. This time I went to settings and saw Flash options. I selected: "HDD Flash" which gave me "C:\BIOS does not exist.' So, I tried: "CD Flash" which gave me "insert a disc with an img.bin file." I can't figure what step I'm missing or what I'm doing wrong here. Am I supposed to burn both the .ISO and .RAR files to the DVD-R rather than only the .ISO? OR am I missing something else entirely? Any and all help would be greatly appreciated.

So, hello there. I am new to all this, although I have had my Xbox since 2005. I got it out recently and thought I should "modernize" it - and this is where I should have stopped. I have an XBOX modded with an X-Changer (not 2.5) and an evo x bios. It started the evolution x dash when pressing the eject button and the X-Changer OS when pressing the power button (interestingly showing two banks to boot from - one 256k and one 512k). So, first thing I did wrong was softmodding the system with Rocky5's upgrade kit, which deleted the original MSXBOX dashboard. The system, however, continued to work fine. The second time I should have stopped. Then, after a lot of research, I found out that there exists an updated X-Changer OS, so I updated the OS to V2.2 via network. It worked fine, but after that I could not start the bios anymore. It just circled back to the OS starting page (not showing two bank any more). So I decided to flash a new bios via network. I chose the latest Cerbios as I read that it should run on an X-Changer. The flash worked fine, but after rebooting the screen stayed black and the light of the XBOX was red. I guess I must have messed it up, to quote the band GusGus. My next idea would be to boot with a TruHeXeN ROM and reflash the bios, this time to an evo x one. So, is there anybody out there kind enough to tell me what went wrong and what I can do? Thanks in advance!

Sooo..... chinese IDE 80 way cable to sata adapter (Master jumper available and enabled)... "aladdin advance" modchip with SST chip. 2TB drive yada yada... been working fine for years. with Evox Wanted Cerbios because... y'know - new toysnstuff.... Flashed the default 2.3.1 Beta - All working well - lovely stuff. Then... I thought I'd try the one with UDMA4 on the end. Now - no video output. At all. my TVs all say (no signal)... This is with component and with composite. Green lights come on on power on - flashing if I push the eject button to turn on. (I heard there was a "safe mode" udma2). But alas no video. Did my flash go bad? It seemed to complete the flash just fine in EvolutionX flasher for both the standard 2.3.1 Beta, and for the "UDMA4" version. But dead now. Any ideas? zero cost option I guess is remove the modchip and TSOP flash (I think it's a 1.4 board definitely not 1.6)? Or try to get a disc to load hexen 2021??? the DVD drive seems to try to open (I can force it with the little pokey hole thing - the eject rubber band is dry)... Or do I have to buy a chip flasher... wanna avoid money spend if possible! lol! Thanks folks!

Hi all, I have a 1.3 xbox, with an Xecuter3 CE installed solderless. I was flashing via FTP, and was able to flash successfully, BUT, I am an idiot and flashed over bank 1 of the 256mb bios so I think I overwrote the x3 default bios. My issue is that my chip does not have the power control board installed, so I cannot use the power+eject button trick to get to the bios recovery screen. Some hopefully helpful pieces of information: 1. After I flashed the cerbios in bank 1 of 256, I was able to reboot to dash from the x3 menu. The cerbios animation displayed, and my evox dash booted with no issue. I then powered off. When I hit power again, it started fragging 2. I did not copy the cerbios.ini to the root of the C drive, which may be part of the issue I am facing, as it does not know to point to the evoxdash 3. When I boot with bank 1 of the 256k bios, the console still frags immediately 4. I also installed a different bios Evox8 in bank 5 of the 256, but I cannot get it to boot from that bios (on, off, on, on for the switch positions). Just constant fragging 5. When I boot with the banks that I have flashed bios to (1 and 5 256) the first boot takes a second before failing, while any other bank setting is nearly instant. I was wondering if I have any options to get to a safe mode where I can flash the bios without the power control board? Any disk drive options, or switch settings I could use I would happily buy that piece for the chip but it is basically unobtanium at this point as I am sure most people on this sub are aware. Any help would be greatly appreciated.

Hi, I bought an OG Xbox witch came with Aladdin Avance chip installed, I tried to update the BIOS but it failed so is unusefull. Reading and watching some guides I decided to obtain a programmer to recover it. Here comes the problem, everywhere I watched said the the BIOS chip is "SST49LF020", so in the programmer software I selected this chip but I'm getting an error. Will post the chip and error photos. Thank you very much and sorry for my English.

Reposted with pics on Imgur: https://imgur.com/gallery/rH19myY I need help flashing this corrupt Bios chip on my Og Xbox. Unfortunately this is the only way i can reflash it, as i attempted to flash it but forgot to bridge the points now my Og Xbox only works with a modchip. I got around to picking up a programmer TL866II Plus with Xgpro v11.90 Flasher tool. But i keep getting a pin detect error. I first tried it with a new exact replacement chip using a TSOP 40 adaptor. Then ended up losing that chip. And desoldered the one from the motherboard. I also removed the cold solder from the adaptors and added some fresh new high quality solder with flux to make sure that isn’t the problem. I socketed it into the slot and no luck “Pin detect error”. I then ordered another adaptor this time without a socket and i soldered on the bios chip. I also redid the solder joints, as the ones on that adaptor were dull aswell, and no luck. I picked up the correct or the closest settings on the Xgpro v11.90 software. I tried TSOP 40 Hyundai and Hynix HY29F080 with no luck. It yet again gives me a “Pin detect error”. I even tried auto detect and it says chip not supported. On the chip it says Hyundai HY29F080T-90, but i can’t find that exact model number on the menu. Could that be the issue or is it something else. I have no idea as this is my first time using a programmer. And saw a video or two on how to use it.

Hi. So I have this 1.6rev Xbox hard modded with a chip Aladdin 64 v1. 6 I tried to flash Cerbios using the OGXbox flash disc. But I am getting errors. Tried with Xblast OS and EvoX OS. Joining the screenshots. How can I flash this chip? Thanks.

I found my old Xbox OG in a cupboard and decided I fancied getting it out and playing some old games I had. It boots up to the old dashboard I had (Avalaunch 0.49.3) and games play etc. Reading the latest on the new features of the Xbox OG Modding scene, I see I can now put much bigger HDDs into it as well as some other features such as Cerbios CCIs etc. I'd like to update my BIOS but I can't get into XeniumOS (XOS) to flash the Cerbios .bin - The OpenXenium BIOS utility by MakeMHz says I am on an older version and need to be on 2.5 at least, but I cannot get there either. I've read that powering on with Eject can reboot to XOS or holding the white button (small problem that I don't have the original controllers anymore and am using a Brook Wingman XB2, so maybe that prevents the white button [Left Trigger] being detected at startup). Its such a long time since I did all this I have forgotten everything I learned back when I modded it LOL My aim is to have all my games on a single HDD and use xbmc4gamers|xbmc-emustation as a nice menu system to choose.

i opened up my xbox and noticed this modchip and was wondering if it would be causing my issue. it will attempt to power on 3 times and on that third time it will start flashing orange and red.