Microsoft Surface Pro 7 NEED BIOS. HELP!

[samstown]

Send to you, Try

Thank you very much. I've flash it but it didn't work.

[blcksmthprnt]

1) when you soldered the bios, did you put the radiator on the processor before turning it on? (if you tried without a radiator, the processor may go into overheating protection)
2) did you wait long enough? probably up to a minute
3) check if the battery has enough charge, because charging may not work until the tablet boots to a specific stage.

[extrexxx]

hi need repair this bios
surface 1866
SN066923201453
issue: widows logo ans shut off
thx in advance

[minhdigital]

hi need repair this bios
surface 1866
SN066923201453
issue: widows logo ans shut off
thx in advance

Send to you, Try

[samstown]

1) when you soldered the bios, did you put the radiator on the processor before turning it on? (if you tried without a radiator, the processor may go into overheating protection)
2) did you wait long enough? probably up to a minute
3) check if the battery has enough charge, because charging may not work until the tablet boots to a specific stage.

THanks for your help.
1.I didn't desolder the bios. I user a soic clip to erase, write and verify and process was 100% ok. That's how I've read original ROM.
2. The device start, I see the gray windows logo and after 4 seconds it turns off.
3. Yes battery is fully charged.

the problem occured after a W10 upgrade, so that's why I beleive it must be a frimware issue on BIOS and not HW related.

[blcksmthprnt]

THanks for your help.
1.I didn't desolder the bios. I user a soic clip to erase, write and verify and process was 100% ok. That's how I've read original ROM.
2. The device start, I see the gray windows logo and after 4 seconds it turns off.
3. Yes battery is fully charged.

the problem occured after a W10 upgrade, so that's why I beleive it must be a frimware issue on BIOS and not HW related.

Try it. Connect all the cables and the radiator to the processor before turning on. Please write back if it works, and if it doesn't work, I'll try again with a newer version of "Flash Image Tool"

[samstown]

Try it. Connect all the cables and the radiator to the processor before turning on. Please write back if it works, and if it doesn't work, I'll try again with a newer version of "Flash Image Tool"

Hello

I apologize for the delay.

I've reconnected the battey and LCD connector (I didn't had to remove radiator to flash ROM), it didn't work. I've flash the new file, same. It start, I see gray windows logo for 2 seconds and it turns off.
Maybe it's the BGA SSD failure.

Thanks
Sam

[blcksmthprnt]

Hello

I apologize for the delay.

I've reconnected the battey and LCD connector (I didn't had to remove radiator to flash ROM), it didn't work. I've flash the new file, same. It start, I see gray windows logo for 2 seconds and it turns off.
Maybe it's the BGA SSD failure.

Thanks
Sam

For interest, provide two bios images 1) the one you last recorded on the tablet with the ME region cleaned 2) the one that is already on the tablet. I wonder if it is possible to find what changed between them to understand if there is a clue where to look for the cause of the breakdown.

[blcksmthprnt]

Please clean ME/TXE region in BIOS.
Microsoft Surface Pro7 i7/16/1024 1866 tablet shows the logo for a few seconds and goes to reboot.
The tablet worked normally and after the update it did not turn on.
I soldered the bios, read the dump. I manually cleaned the ME region and saved the bios. After that, the Windows logo appears not for 3 seconds, but for longer, about 20 seconds, and goes to reboot again.

Please clean ME region in bios, because maybe I'm doing something wrong due to lack of experience.

[Vesko356]

Read the rules before posting
RULES UPDATE for BIOS requests/offers *AVOID BANNING, READ BEFORE POSTING*
https://www.badcaps.net/forum/troubl...before-posting

You MUST:

• Provide the full machine model number, serial number (or Service tag, SNID) and the board model number (see https://www.badcaps.net/forum/showthread.php?t=88758 ) ,The serial number, make, full model number, motherboard model and revision (except QR codes) must be written/typed at your request as per the rules. Not as a picture, part of the file name and so on.

[volinakis]

Please clean ME/TXE region in BIOS.
Microsoft Surface Pro7 i7/16/1024 1866 tablet shows the logo for a few seconds and goes to reboot.
The tablet worked normally and after the update it did not turn on.
I soldered the bios, read the dump. I manually cleaned the ME region and saved the bios. After that, the Windows logo appears not for 3 seconds, but for longer, about 20 seconds, and goes to reboot again.

what means "manually cleaned the ME"? Replaced ME Region with UEFITool, or what?

[blcksmthprnt]

what means "manually cleaned the ME"? Replaced ME Region with UEFITool, or what?

I opened the dump that I downloaded from bios using "Intel (R) Flash Image Tool. Version: 13.0.20.1312"
disabled the option "build->build settings-> GenIntermediateFiles NO"
clicked save bios in the program
renamed the file "13.0.55.1889_CON_LP_D_PRD_EXTR.bin" to "ME Sub Partition.bin" and replaced file "ME Sub Partition.bin" in the folder "Decomp"
Click "Build image"
write and verify to chip winbond 25r128jwpq
soldered the chip back to the motherboard

after that, instead of 2..3 .. seconds, the tablet turns on the logo for 40...55 seconds and cannot boot. Only the logo is visible. and after a few minutes of the boot loop, the processor cooling fan starts spinning. power on the USB port does not appear (before that it appeared for half a second)

[Vesko356]

https://www.badcaps.net/forum/troubl...21#post3217521

[blcksmthprnt]

Microsoft Surface Pro7 i7/16/1024
model:1866
SN: 030 327 694 853
board: JALAMA_ICL_MB DV:10B

Please help to edit the bios, or tell me where to go next.

problem at the moment:
- the tablet takes a very long time to load (about 1.5 minutes to get into the bios interface)
- the touchscreen does not work
- there is no "Intel Management Engine" firmware


A short story:
After the update, the tablet has a boot loop every 3 seconds. Only the logo is visible for 3 seconds. I can't enter UEFI, I can't boot from USB.
I read bios backup 1_AsProgrammer_read_original_boot_loop.rar
I opened this backup in the program "Intel (R) Flash Image Tool. Version: 13.0.20.1312"
replaced that file "ME Sub Partition.bin" with this "13.0.55.1889_CON_LP_D_PRD_EXTR.bin"
and made a build 8_outimage.rar


Now the tablet takes a long time to load, in about 3 minutes I can see the Windows recovery page and I can see the files on the SSD to choose where to recover Windows from. From this we can conclude that the SSD is working

it looks like the tablet is physically working, and there is no damage to the hardware.

Please tell me what to do next?

[samstown]

For interest, provide two bios images 1) the one you last recorded on the tablet with the ME region cleaned 2) the one that is already on the tablet. I wonder if it is possible to find what changed between them to understand if there is a clue where to look for the cause of the breakdown.

I've tried again. I've flash orginal ROM and the two modified ROM I got on this forum.
Surface Pro 7 model 1866 SN059810502053

Same, logo...3 seconds and black screen. Here is the sequence.

122: UniqueID:0x201A5800150420EB
123: Start writing chip......
124: Auto erasing...
125: Erase successful,Elapsed time:36.14 seconds.
126: Start writing...
127: Write successful,Elapsed time:69.83 seconds.
128: Auto verifying...
129: Verification successful,Elapsed time:15.41 seconds.
130: Status register1 values: 0x0, Status register2 values: 0x2 .
131: Elapsed time: 85.26 seconds,average speed of 196772 bytes/sec.

If anyone has an idea otherwise it will be time to give up.

[blcksmthprnt]

I've tried again. I've flash orginal ROM and the two modified ROM I got on this forum.
Surface Pro 7 model 1866 SN059810502053

If anyone has an idea otherwise it will be time to give up.

it's too early to give up! I am currently studying this topic. if I use different Flash Image Tools, I get different results for some reason. But at the moment the touchscreen does not work and ME firmware is shown as 0.0.0.0
If I can repair my second tablet (because the first one was successfully repaired), I will try to deal with your case again.
What programmer are you using? Because my CH341 programmer reads this bios for about 3 minutes and writes for about 23 minutes.

[samstown]

it's too early to give up! I am currently studying this topic. if I use different Flash Image Tools, I get different results for some reason. But at the moment the touchscreen does not work and ME firmware is shown as 0.0.0.0
If I can repair my second tablet (because the first one was successfully repaired), I will try to deal with your case again.
What programmer are you using? Because my CH341 programmer reads this bios for about 3 minutes and writes for about 23 minutes.

Hello,
I have CH341, that was my first one. Then I had RevealProg, it's very good but fragile.... and now RT809F, this one is really really good and stil cheap.
I am happy to try again if you think there is a way.
Thanks

[blcksmthprnt]

Hello

Surface boot loop after update. All tricks on internet won't work so I've read BIOS Winbond chip. I hope this is the reason.

Thanks
Claude

try it.
my tablet started booting with these settings but the touch screen is not working

[blcksmthprnt]

Microsoft Surface Pro7 i7/16/1024
model:1866
SN: 030 327 694 853
board: JALAMA_ICL_MB DV:10B
1_AsProgrammer_read_original_boot_loop.rar

The touchscreen does not work after cleaning the ME region

What I did:
The tablet does not load, only shows the logo for a few seconds. I cleaned the ME region (with Intel (R) Flash Image Tool. Version: 13.0.37.1556) and got no noticeable result. Then I cleaned ME region and disabled only one option
ME Feature Pins: TouchResetGpio value="GPP_D_14" -> TouchResetGpio value="None" (Configure Intel(R) Precise Touch Technology Reset GPIO)


The tablet started up, Windows updated the bios, but the touch screen does not work either in UEFI or in Windows.

I compared the bios settings (xml via winmerge-2.16.38) with other bios from similar tablets and all the options are identical. Only when i change this option TouchResetGpio value="None" then the tablet turns on.
Who knows what this option means and how I can repair the touch screen?



I read this but it doesn't help:
MS Surface no touchscreen after cleaning ME Firmware **FIX**

[blcksmthprnt]

Microsoft Surface Pro7 i7/16/1024
model:1866
The tablet does not load, only shows the logo for a few seconds. I cleaned the ME region (with Intel (R) Flash Image Tool. Version: 13.0.37.1556) and got no noticeable result. Then I cleaned ME region and disabled only one option
ME Feature Pins: TouchResetGpio value="GPP_D_14" -> TouchResetGpio value="None" (Configure Intel(R) Precise Touch Technology Reset GPIO)

The issue is resolved!
The error was always in the hardware and not in the bios!

I understood that if I turn off GPP_D_14, then the tablet works, but if I turn it ON, then i get boot loop. I started looking for where this contact goes according to the schema motherboard_surface_pro7_1866.zip

the tablet had to be a boot loop because the capacitor always shorted +5 volts to ground.
GPP_D_14 -> RTD3_TPANEL_PWR -> U6407 -> +5V -> R6417 -> C3002 !!! has a short circuit !!!
I replaced the C3002 with a good one and everything worked.

[minhdigital]

The issue is resolved!
The error was always in the hardware and not in the bios!

I understood that if I turn off GPP_D_14, then the tablet works, but if I turn it ON, then i get boot loop. I started looking for where this contact goes according to the schema motherboard_surface_pro7_1866.zip

the tablet had to be a boot loop because the capacitor always shorted +5 volts to ground.
GPP_D_14 -> RTD3_TPANEL_PWR -> U6407 -> +5V -> R6417 -> C3002 !!! has a short circuit !!!
I replaced the C3002 with a good one and everything worked.

Thanks for sharing !!

[samstown]

Thanks for sharing !!

Nice one !