Acer BIOS password Solved/Closed

Question

Hi  unfortunately I forgot the BIOS password of my laptop (Acer Aspire 1355 LC). Please help me out of this mess... It's very urgent!

Yassine · Accepted Answer

Hello;
I too suffered from this problem for a week, I have an Acer Aspire 9410Z laptop.

Before proposing the solution I found, be aware that laptops are well protected and the solutions you find online are only intended for desktop PCs.

Beware of the following solutions (ineffective, very risky, and a waste of time):
- Removing the battery from the laptop for a certain period.
- Searching for a jumper next to the CMOS circuit (you won't find a jumper in laptops).
- Using software to erase the password (laptops are equipped with an EEPROM BIOS).
- Putting the laptop in the freezer!!!!!..... it's true, you can find this kind of thing online.

The procedure to use (successfully tested on Acer Aspire 9410Z) (at your own risk)

1-- Turn off your laptop and unplug the charger (not the battery).
2-- Remove the keyboard from your laptop using a flat screwdriver....(be careful of the cable underneath).
3-- Disconnect the cable from the motherboard.
4-- Now you will find a small black box with micro switches (small numbered switches).
5-- Move switch number 1 up.
6-- Reconnect the keyboard cable without putting the keyboard back in place.
7-- Start the computer and press F2, you should normally enter the setup without any problems.
8-- In the security menu, disable the use of the password, to have the state "clear"
9-- Save and exit
10-- Turn off your PC.
11-- Reset switch 1 to its initial state (move it down).
12-- Put the keyboard back in place.

And there you go, mission accomplished.

thmax · Answer

there, you're in deep trouble, that's what happens when you try to protect yourself too much.
Either you call Acer, or you disconnect the battery to clear the BIOS and reset it to default... then reconfigure it.
thmax

teuss · Answer

You need to remove the battery, move the jumper, and put it back in its place.

diouf · Answer

Hello
I also have this kind of problem with my Acer machine, but mine is totally blocked and displays a message like "password violated system alted"; I have tried everything, I removed the battery for an hour but so far nothing
Can you help me?

benjamin · Answer

Hello,
I have an Acer Aspire 3660 (laptop), yesterday I set a password, today it restarts (on battery, and asks for the password, I enter it and then it boots...) After a few minutes (about 45) the battery is almost drained and the computer goes into hibernation mode, then I connect it to the power supply and turn it back on and it asks me to enter the startup password (like before) but it won't accept it anymore as if the password has changed...

I entered this password using the Acer software in Windows...

So I looked under the hood and noticed there is no battery or jumper... I read on another site that the battery for Acer is next to the touchpad unfortunately too many screws, too much plastic, too hard to remove the case so if you have a diagram ^^ or another solution to my problem
please help me O_O!!!

Thanks in advance

Invité · Answer

Hello
I have a "piece of shit ACER" PC that doesn't boot up properly anymore - black screen and only one fan (the one under the keyboard) is running
It's an Aspire 1355 laptop and the battery is under the motherboard, so on this model you have to remove the motherboard to access it
If you get started, my advice is to take photos at each stage of the disassembly and note the location and length of the screws
Watch out, the plastic of the cases is crap: it crumbles and I have some inserts (where the screws go) that are dead

A good disassembly tutorial on the Zébulon site
Good luck

williams · Answer

I would like to know how to identify these points in order to shorten, it's really a mess. Please help me.

aspirerush · Answer

I removed the BIOS password set by the manufacturer on my Acer laptop by following the advice on this page http://www.zonereferencement.com/forum/supprimer-mot-de-passe-bios-sur-portable-acer-t395.html and yes, there is a "clear cmos" jumper; it's in the PDF on the same page with photos and instructions.

Bye.

hepha · Answer

1) turn off the phone
2) unplug the charger
3) remove the battery
4) on the underside there are 3 covers
remove the cover under which there is a battery.
5) carefully remove the battery.
6) press and hold the power button on the phone for 10 seconds
7) carefully replace the battery
8) replace the cover taking care not to damage it
9) replace the battery
10) turn on the phone, then press "F2"

enjoy :) :p

annonyme · Answer

you do nothing

Greg026 · Answer

Yassine, you are a genius lol thanks for the info, it works perfectly for the password!!!

clem · Answer

SAM.44 hey, I can’t find the battery after struggling to take my PC apart in every direction. If anyone has a tip, that would be great.

padawan59 · Answer

Hi, I confirm I have an Acer 6530G remove the cover take out the battery gently remove the CMOS battery (it’s connected by a small 2-wire cable) wait 10 seconds put everything back together and it works! at least for this Acer model thanks everyone

sese830 · Answer

Hello, does anyone know how to do it for an Acer Aspire 8930 because I removed the battery (still asking for a password) but I can't find a switch and even less a jumper. Thanks for any suggestions.

ben842 · Answer

For my 8935g it worked, right under the keyboard but I couldn't remove it despite the 40 screws removed!!!! I put my fingers between the chassis and the keyboard, removed the battery, pressed the power button for several seconds, put the battery back, and no more password, everything works perfectly!!

PititPierrot · Answer

Hello Ben842, I have the same PC as you and I can't find the battery. I've removed the keyboard, taken off the memory cover... I would appreciate a helping hand, please.

nomeren · Answer

for ASSINE  thank you so much  too easy, it’s incredible this switch 1 it’s even written on it: password :)) lol you wonder why they did that  thanks again, I searched too much  ++++

PititPierrot · Answer

So, a little unkind response for those who own an Aspire 8935 like me...
No solution except returning it to Acer, knowing that it's out of warranty for a price of €140.
Beep Beep
Their response is simple:
The BIOS battery is now soldered, so it’s impossible to remove it without tearing off the mounting legs.
Moreover, there is no default manufacturer password, so the only solution is to desolder the protected part of the BIOS and solder on a new one.

So there you go, a big disappointment.

PS: I'm currently negotiating a free return, but it's not easy...

PititPierrot · Answer

Hello everyone, After extensive research, I discovered that there is indeed a default password for ACER BIOS CMOS BIOS PHOENIX phoenix  However, for the latest models, I do not have this password. So for a 8935G, if someone obtains this password, I'm interested  Thank you very much.

MoThOmAs · Answer

Good evening.
I have an Acer 8930G and I would like to reset the BIOS. I have removed the plastic cover but I couldn't find the battery. If anyone has the same model as mine and has already done this procedure, I would appreciate your help.
Thank you in advance.

MoThOmAs · Answer

Good evening.
I have an Acer 8930G and I would like to reset the BIOS. I have removed the plastic cover but I couldn't find the battery. If anyone has the same model as mine and has already done this procedure, I would appreciate your help.
Thank you in advance.

Pitit Pierrot · Answer

Hello,  I managed to reset my ACER 8935G by removing the battery for several minutes... The battery is well hidden... to reach it, you need to plan for an hour of careful disassembly,  So first, you have to remove the battery, then unscrew the screws that are located under the battery. Next, remove the cover underneath the laptop to access the hard drive. Disassemble it (2 screws), then the DVD drive (1 screw); be careful, there is a hidden screw under the DVD drive on the side of the laptop (ACER are clever). Then, unscrew the 17 screws from the general plastic support, remove the keyboard by unclipping it, then all the connectors under the keyboard (small flap to lift slightly, the connector comes out easily), then the screws under the keyboard. Remove the last screws next to the hard drive (3 screws) and the one from the motherboard (1 screw). Normally, the speaker and power button panel detach; remove all the screws from this panel. The funniest part is coming up, the central block moves, but one side is still held by the screen's pivot axis (top left), 2 screws support it, and you need to remove them. You are almost there, one last screw to remove under the screen axis. There you go; everything comes off, and you finally have access to the battery... Beep Beep!!! It's located under the mouse pointer cover (the area where you slide your finger to move the mouse).  You just need to remove the battery... I waited 30 minutes and pressed the power button for several seconds (20s).  And it works, I confirm!!!  However, I contacted the fraud department because buyers of the latest ACER model like the 8935G are victims of SCAM because I don't know about you, but ACER asked me for €140 to unlock a password that I NEVER SET. Moreover, I was practically insulted by customer service, so I'm not going to leave it at that. The BIOS password is indeed programmed in the BIOS, but it was impossible from the start to access it since a password was already requested.  I'll keep you updated on what happens next.  Good luck to everyone.

MoThOmAs · Answer

Thank you very much for your detailed response. This will help me a lot.

ben842 · Answer

I confirm that I have an ACER8935G that had this password issue at boot. I dismantled all the covers, but there was one or several screws preventing me from accessing the battery located near the Alt Gr key. I was able to use a screwdriver to unclip the battery, which is not soldered but sits in its holder. I discharged the current by pressing the power button for at least 10 seconds, then reinserted the battery... and... and... IT WORKS!!!!

ben842 · Answer

read the answers....good grief...YOU HAVE TO TAKE OUT THE BATTERY!!!!!

bobi · Answer

I confirm what has been said above, it must be admitted that the assembly of this Acer range (8935g) is neither well done nor complete; the more we advance, the more the machines are assembled despite common sense. The trickiest part of disassembly is unclipping the keyboard: there are small tabs at the top to push back; it used to be easy, but now it requires a lot of dexterity if you don’t want to mess everything up.

A tip: put your screws in small labeled boxes; this will help for reassembly.

I confirm that there is a recurring bug with the ACER Phoenix BIOS. I confirm that customer support did not provide me with a satisfactory response, for example by giving me a "backdoor" password. Clearly, they don't know their subject, even though the person I spoke to on the phone seemed embarrassed that they couldn't provide a solution, other than a paid service return, even though the device is under warranty!

The whole problem arose from the bio-protection system (fingerprint). Never enable the PBA function (which requires a fingerprint from the BIOS)!

- If you check this box, it puts a password block on the machine startup
- You might say it’s no big deal, just uncheck the box and there will be no password... Well, no! The BIOS password remains! You have to enter it every time you start up, which is annoying.
- You might say it’s no big deal, just go into the BIOS and set the password to "Disable"... Well, no! The option is locked: it's impossible to remove the password!
- You might say it’s no big deal, just change the password by entering a blank password (hit enter). NEVER DO THAT, YOU FOOL! That's where the problems start. The Phoenix BIOS, which is a real PIECE OF JUNK, allows you to set a blank password, but then, IMPOSSIBLE to get in! (I tried everything)...

Moral of the story: as long as Acer does not have a procedure in place for this case to use a default password, disassembly will be mandatory with all the problems that can arise from it... This all severely lacks professionalism!

ben842 · Answer

For the second time, I reset the pre-BIOS and BIOS password by removing the battery from my 8935G, because, stupidly, I had disabled fingerprint reading; now everything is fine.The battery is located under the pad; you need to remove the battery and power supply, then slightly open the front, slide your fingers, detach the battery, and discharge by pressing power for about ten or twenty seconds to be sure.Reassemble the battery and the PC.Everything is fine; only the login screen remains.

PititPierrot · Answer

Mamya02 .... for your response, the important thing is not the model of your PC but that of your motherboard, usually Phoenix for Acer. So focus your research on that. I’ll look into it on my side.

michel · Answer

HELLO I WAS GIVEN AN ASPIRE 7220 PC BECAUSE IT DOES NOT WORK THERE IS A WINDOW THAT SAYS /windows logon:logonUI.exe - Incorrect Image and below it says: C:/Windows/system32/WINBRAND.dll is not designed to run under Windows or contains an error. Please reinstall the program using the original installation media, or contact your system administrator or software vendor for support. After I click OK, it opens a window: SLUI.exe incorrect image and it goes back to what I just mentioned. Please help me because I cannot afford to buy a PC and it would help me to work. In any case, I thank you in advance for your understanding. Thank you, Canovas Michel.

Spartacuse · Answer

Hello,  start your PC  when it asks for the password, press enter, enter, enter, it will give you an error code  post it here on the forum and wait a few minutes, I will decrypt the password for you.  Best regards, AKIMANIA

thi0199 · Answer

Hello,
I had the same issue with an Acer 8943G after unplugging the BPA...

In the end, the BIOS code was one of my configured codes during the BPA activation, but I had to use the numbers above the keyboard and not the numeric keypad!!!
Additionally, the keyboard is in QWERTY for the BIOS, so do not enable uppercase letters...

140 euros plus shipping costs for that is borderline scam...

Don't tell me Acer can't say that over the phone!!!

ju537 · Answer

Hello I have an Acer laptop (it's not the same model as yours :s) I don't know if it will work, but it did for me!!! I just did it a few minutes ago  ==> Turn off your PC, remove the covers with a small screwdriver, and take off the covers; under one of the covers there is a battery, remove it and wait 2 minutes then put it back in the right direction and that's it. However, right now I'm under the guest session, my session has a password that recently changed, but anyway, I managed to remove this password from the BIOS.

bonaventure · Answer

I have an Acer TravelMate 2300, how can I change the BIOS password?  Thank you for finding a solution for me.

JAJA · Answer

I have an Acer Aspire 7720G PC After a restoration to return to the original settings, I cannot restart my PC; it displays "enter current password". I thought I knew it, but it does not accept it, and after 3 attempts, everything closes. What should I do? Thank you in advance.

toni · Answer

I just took off the cover and I don't see any battery.

spino1er · Answer

Hi everyone!
After several attempts and tips that led to nothing, except one that I did "simply", entering the version number of my Acer Extensa 4620Z PC, so the code is 4620Z; but I notice since a message on the screen "System Disabled [04916]. Am I out of the woods?

fred · Answer

Hi, my daughter has an Aspire 5315, and her idiot boyfriend set a password in the BIOS at startup and wouldn't give it to her because they broke up. Anyway, as I know a thing or two, here’s a video I made on how to reset the BIOS since the battery on the Aspire is soldered. I personally tested it with 100% success, and the BIOS is back to the way it was on the first day. With a flat screwdriver, make contact for 2 seconds, that's all.  http://www.youtube.com/watch?v=wNESt8Pi0CQ

choup'modern · Answer

Otherwise, try to think hard (not always easy :)) but the best would be to take it to a computer repairman ;)

choup'modern · Answer

because it's risky, you might break it ;)

fred · Answer

Hi, I had the same problem. Look here, I posted a video  http://www.youtube.com/watch?v=wNESt8Pi0CQ

bginformatique · Answer

Je suis désolé, je ne peux pas vous aider avec ça.

Acer BIOS password

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