[HELP] Acer Travelmate P253-E bios downgrade

[torta1]

Hello all!

i would like to ask if there's a method / utility for downgrading the travelmate p253-e bios. I upgraded the bios to version 2.21 from 2.04 (shame on me) to try to solve a resume issue. The procedure was successful (i was able to start windows) but now when i switch off the computer it doesnt power up again. If i press the power button the fans are spinning for some seconds, then it switches off. if AC is connected it restarts itself in an endless loop.

To temporary solve the issue i need to remove the RAM and reinsert it into the other slot.

So i really would like to downgrade bios to 2.04. Here's what i did so far:

1- Downloaded official 2.04 bios upgrade from acer support, and tried to install it. i get an error message because the bios version is less than the installed one (2.21). Modifying parameterS.ini solves nothing as it's recreated every time i run insydeflash.exe. i found out it's embedded in the bios file.

2- Edited 2.04 with hexedit, looked for the section containing 2.04 and changed it to 2.21. this was successful as insydeflash.exe now allows me to load this 2.04 bios. unfortunately i get an error message at reboot "invalid firmware image!!!" I think there's some kind of signature check on the installed bios.

3- Used USB recovery procedure with FN+ESC, which should ignore bios signature. Got the correct file name using andyphoenix tool (Q5WV1X64.fd), but after the bios is loaded from USB (i see it flashing for 30 secs circa) the notebook emits 3 loud beeps and shut itself down.


Obviously acer support is useless, they keep sending me RAM specifications and stuff like that. I've also tried with different RAMs sticks but the issue is precisely the same, so it's not an hardware issue.


Do you have any idea how to bypass point 2 and 3 limitations?

Thank you!!

[torta1]

bump

[BDMaster]

Ok friend,
the only way almost quite sure for Downgrading or Upgrading is the Recovery Mode !
The only limitation is that Recovery File has (for Bios RSA Signed) !
So inyour case Recovery don't work as Bios is Capsulated !
Here is a Dirty Guide of mine about Decapsulte Bios :

http://rghost.net/52544682

Then the Recovery Procedure here :

- Format in Fat32 Dos mode your USB Stick and copy into your Bios Recovery File
- Shutdown the netbook (notebook)
- Remove all peripheral devices
- Remove battery, Remove AC power cord
- Press and hold the power button for 10 seconds (battery and AC power still out), then release
- Put the USB Memory Stick in the USB port
- Hold "Fn" + "Esc" and plug the AC power cord in
- Now press the power button (whilst still holding Fn + Esc).
Wait until the fan will run, then release "Fn" + "Esc" keys
- The fan will run for about 2-10 minutes and the USB drive activity LED will blink
- I think the netbook rebooted automatically. If it doesn't, unplug the AC power cord once the fan has turned off

The bios should be updated with the modified BIOS, and boot as per normal.


Here is your Recovery Bios File Decapsulated with Slic 2.1 + Menu Tabs Unlocked :

http://rghost.net/56321970

let me know
regards

[torta1]

Hello BDMaster,

thank you very much for your support!!! I took the file on the last link and prepared the USB drive. i also had to rename the file, because the recovery procedure wasn't detecting it (i renamed it to Q5WV1X64.fd)

unfortunately, the pc seems to refuse it. here's a video of what happens:

http://it.tinypic.com/r/wmmadt/8

just to make it clear, because i might misunderstood your instructions. do i need to download bios 2.04, and decapsulate it myself? because i just prepared the usb flash drive with using the files on the last download link.

again thank you!

[BDMaster]

Hello BDMaster,

thank you very much for your support!!! I took the file on the last link and prepared the USB drive. i also had to rename the file, because the recovery procedure wasn't detecting it (i renamed it to Q5WV1X64.fd)

unfortunately, the pc seems to refuse it. here's a video of what happens:

http://it.tinypic.com/r/wmmadt/8

just to make it clear, because i might misunderstood your instructions. do i need to download bios 2.04, and decapsulate it myself? because i just prepared the usb flash drive with using the files on the last download link.

again thank you!

It's strange your Recovery name is different than mine !
Can You post a linl to your original Bios 2.04 or upload It here ?
I will check It and I will upload new Original Recovery File Bios 2.04 based on your
link !
Regards

I downloaded newly Bios v. 2.04 for Acer Travelmate P253-E from Acer site and I redo Original Bios based
Recovery File :

http://rghost.net/56377151

Let me know
regards

After I will Mod this one to get Slic 2.1 and menu Tabs Unlocked

[torta1]

Hello BDMaster,

thank you very much for your support!!! I took the file on the last link and prepared the USB drive. i also had to rename the file, because the recovery procedure wasn't detecting it (i renamed it to Q5WV1X64.fd)

unfortunately, the pc seems to refuse it. here's a video of what happens:

http://it.tinypic.com/r/wmmadt/8

just to make it clear, because i might misunderstood your instructions. do i need to download bios 2.04, and decapsulate it myself? because i just prepared the usb flash drive with using the files on the last download link.

again thank you!

It's strange your Recovery name is different than mine !
Can You post a linl to your original Bios 2.04 or upload It here ?
I will check It and I will upload new Original Recovery File Bios 2.04 based on your
link !
Regards

I downloaded newly Bios v. 2.04 for Acer Travelmate P253-E from Acer site and I redo Original Bios based
Recovery File :

http://rghost.net/56377151

Let me know
regards

After I will Mod this one to get Slic 2.1 and menu Tabs Unlocked

it worked!!! thank you very much!

by the way, i went through all bios updates, now bios 2.21 is working good, probably they forgot to put a constraint in the bios chain update rule (2.04 -> 2.05 -> 2.07 -> 2.13 -> 2.16 -> 2.21).

shall i use the top button to donate you?

Thank you again!

[BDMaster]

Hello BDMaster,

thank you very much for your support!!! I took the file on the last link and prepared the USB drive. i also had to rename the file, because the recovery procedure wasn't detecting it (i renamed it to Q5WV1X64.fd)

unfortunately, the pc seems to refuse it. here's a video of what happens:

http://it.tinypic.com/r/wmmadt/8

just to make it clear, because i might misunderstood your instructions. do i need to download bios 2.04, and decapsulate it myself? because i just prepared the usb flash drive with using the files on the last download link.

again thank you!

It's strange your Recovery name is different than mine !
Can You post a linl to your original Bios 2.04 or upload It here ?
I will check It and I will upload new Original Recovery File Bios 2.04 based on your
link !
Regards

I downloaded newly Bios v. 2.04 for Acer Travelmate P253-E from Acer site and I redo Original Bios based
Recovery File :

http://rghost.net/56377151

Let me know
regards

After I will Mod this one to get Slic 2.1 and menu Tabs Unlocked

it worked!!! thank you very much!

by the way, i went through all bios updates, now bios 2.21 is working good, probably they forgot to put a constraint in the bios chain update rule (2.04 -> 2.05 -> 2.07 -> 2.13 -> 2.16 -> 2.21).

shall i use the top button to donate you?

Thank you again!

Hi friend,
if You want to donate can do to Donovan6000 (He is a moderator) who is doing a lot of research about HP RSA bypass !
Look here :

http://donovan6000.blogspot.it/p/donate.html

He is my Teacher and all I can do is thank to his knowledgement !
Let He know that your donating is from You and Me for his efforts to studyng Bioses and to help all users !
regards

[torta1]

Hello BDMaster,

thank you very much for your support!!! I took the file on the last link and prepared the USB drive. i also had to rename the file, because the recovery procedure wasn't detecting it (i renamed it to Q5WV1X64.fd)

unfortunately, the pc seems to refuse it. here's a video of what happens:

http://it.tinypic.com/r/wmmadt/8

just to make it clear, because i might misunderstood your instructions. do i need to download bios 2.04, and decapsulate it myself? because i just prepared the usb flash drive with using the files on the last download link.

again thank you!

It's strange your Recovery name is different than mine !
Can You post a linl to your original Bios 2.04 or upload It here ?
I will check It and I will upload new Original Recovery File Bios 2.04 based on your
link !
Regards

I downloaded newly Bios v. 2.04 for Acer Travelmate P253-E from Acer site and I redo Original Bios based
Recovery File :

http://rghost.net/56377151

Let me know
regards

After I will Mod this one to get Slic 2.1 and menu Tabs Unlocked

it worked!!! thank you very much!

by the way, i went through all bios updates, now bios 2.21 is working good, probably they forgot to put a constraint in the bios chain update rule (2.04 -> 2.05 -> 2.07 -> 2.13 -> 2.16 -> 2.21).

shall i use the top button to donate you?

Thank you again!

Hi friend,
if You want to donate can do to Donovan6000 (He is a moderator) who is doing a lot of research about HP RSA bypass !
Look here :

http://donovan6000.blogspot.it/p/donate.html

He is my Teacher and all I can do is thank to his knowledgement !
Let He know that your donating is from You and Me for his efforts to studyng Bioses and to help all users !
regards

Done! keep up your good work guys!

[BDMaster]

Many Thaks friend !!! From Me and Donovan !!!
Regards

[Lived]

Hi guys can you please upload this recovery files again. Have the same problem.