[Request] Acer Aspire V3-771(G) BIOS unlock

[hai_bar]

Hello,

I've been searching for more than two days around the internet for a solution to get my laptop working again. I'm hoping this web-site will finally provide an alternative to the expensive ACER option (they take ~100USD for this service)

Short summary:
Laptop: Acer Aspire V3-771G 
BIOS Vendor: InsydeH20 Bios
Version: 2.28 

Issue:
I bought this laptop (second hand, previous owner in another country <- out of reach) 2 weeks ago, everything was working fine but I had no access to the BIOS as he locked it with a password. I've tried all the known tricks out there in order to unlock but nothing worked, from the generic password generator (this laptop does not provide any checksum/hash after keying 3 wrong passwords), to completely dismantling the laptop in order to isolate CMOS Battery and make sure no electricity is in it's area, nothing worked. So I did something stupid, I flashed the BIOS from the Windows that was installed in it and things went terrible from that point. The BIOS patch I downloaded from the acer support website (updated from version 1.14 to 2.28) and now I'm stuck in the UEFI/Secure boot prison (at least I think so) <- the Laptop does not see any HDDs / bootable flash drives except for ubuntu 14.04 live-usb, and I believe this problem might be easily solved if I gained access inside the BIOS. Do you think anything can be done to fix this? 


I have read somewhere that downgrading to the BIOS version I had before might solve the problem so I can get inside Windows / or any installed OS on any HDD again, but not sure how. Read here in the forum that someone can perform an emergency bios-flash but I'm not sure how that works with this kind of laptops and these kind of (BIOS-Flash) Patch. Check the links below in order to get more info about the flasher provided from ACER for this laptop. 

Summary: 
Emergency flashing BIOS from 2.28 to 1.14 (downgrading) && removing BIOS password via emergency flash, since no HDD / usb-images (including ms-dos, free-dos) is able to boot or to be seen by laptop. 

Links: 
Desired BIOS Version (from ACER Website) 

Best regards,
H. Bar

[hai_bar]

Hello,

Any ideas? I'm getting desperate here

[hai_bar]

I have acquired some information from a local ACER service point which I believe can be useful. They mentioned that the root of my problem is most probably because I flashed/updating a locked/secured BIOS - causing the Laptop to enter a 'hang' mode, probably explains why it does not see any HDDs or Storage media (Live CDs for ex.). My request would be a modified BIOS-update that can override the 'secured-zone' and/or remove the BIOS password. Is that possible? Please at least provide information whether it's possible or not.

[DeVolf]

Here You go :

http://rghost.net/7bJ5s5kyz

Regards

Hi! All links are dead, is there was some difference from https://www.bios-mods.com/forum/Thread-U...est?page=1 this mods?

[mordor]

hi can any1 unlock my bios for acer v3-771g v1.14


Model: Acer Aspire V3-771G-53218g87maii (nvidia gtx650m version)
-Bios Version : 1.14
-Official Acer Bios Link :http://global-download.acer.com/GDFiles/BIOS/BIOS/BIOS_Acer_1.14_A_A.zip?acerid=635084169184009312&Step1=NOTEBOOK&Step2=ASPIRE&Step3=ASPIRE%20V3-771G&OS=ALL&LC=nl&BC=ACER&SC=EMEA_18[url=https://www.sendspace.com/file/tiipiz][/url]

thx

[jogo94]

Hi All-
I have an Acer Aspire V3-771g notebook. The issue im having is the battery is close to dying on it.
I ordered a 9cell battery which didnt work. If i hover over the battery icon it would say "plugged in, not charging". They sent me a replacement twice and the same issue happened. I figured the 9 cell battery wasnt fully compatible with my notebook even tho the webpage said it would work. If I put my original batter back in the notebook and plug it in and hover over the battery icon it says plugged in, charging. so I dont think anything is wrong with the notebook itself.

Im thought that there might be an issue with the old 1.15 firmware not working on newer\3rd party batteries, so I updated the firmware to 2.28 and that won't fix the issue I’m having. I tried calling there tech support, but they wouldnt help since the notebook is out of warranty.

It’s looks like i need an unlocked firmware.

Thanks!
Link to bios v.2.28: http://global-download.acer.com/GDFiles/BIOS/BIOS/BIOS_Acer_2.28_A_A.zip?acerid=635273377786893421&Step1=NOTEBOOK&Step2=ASPIRE&Step3=ASPIRE%20V3-771G&OS=ALL&LC=pl&BC=ACER&SC=EMEA_20

Edit:
I used BACKUP_TOOLS18.exe from: https://www.sendspace.com/file/x64ra8
Results: https://www.sendspace.com/file/f30ysp

[NoOne1]

Hello.

Need help unlocking bios 2.28 I have locked OC on GT650M card Cooling which can not be controlled and voltage is also blocked

[had8pie]

Thank you, you are the bomb. Here i am looking for unlocked v3-771g 1.15 bios through all of the forum (googling to from yesterday) all infound were dead unlocked bios links, you're the hero of the day. Thanks

[Valerii]

Bios Modded v.1.15:
http://rghost.net/55946140

Can you please re-upload the file?

Thanks in advance!

Can you please re-upload the file?

Thanks in advance!

[falconity]

hi dear

I got ACER V3 771-G Laptop

I put password to bios 4 years ago.I forget password.This is not let me go in bios.No hash string after three failed system halt.

Also I need unlock bios advanced tap.

Please help me about this.

bios version Insyde Corp. V2.28,

Bios Link https://www.acer.com/ac/tr/TR/content/support-product/4090?b=1

Also windows 10 and boot order UEFI 64 BIT

please help me

kind regards