How can I perform Bios Recovery Acer Predator 15 G9-593-76MG after it got stuck during BIOS update?

Mike14021973

Hello all,

during BIOS-update (mistakenly also selected together with normal Windows Updates) my Acer Predator 15 (G9-593-76MG) got stuck in 'please wait a while while we do a system-update' (or a similar message). As it took too long, I did battery-reset. Since then PC starts up, screen stays black all of the time, no sound, fans and HD seem to be turning, …). After about 2 minutes it restarts and does the same thing again.

I want to di BIOS recovery with USB-stick, 'FN' + 'ESC' + PWR-button procedure. Problem: I tried lots of times already …:

64Mb USB-stick formatted FAT.
8Gb USB-stick formated FAT32.
I found several *.bin-files on different forums (MURDC.bin, MU5DC.bin, 20230909_Acer predator R9-593.bin, 42221 mu5dc W25Q128BV@WSON8_20210430_213823.BIN,…).
Tried renaming them, changing extension to *.fd.
On the 64Mb-USB there's a LED and from time to time it flashes, so I'm guessing the laptop is trying to read info from it and might be trying to do the BIOS-recovery.

… but wasn't able to do the BIOS Recovery.

It's my programming-laptop, so I should get it working again. I already removed HD to make back-up of my projects.

I also downloaded 'BIOS_Acer_1.14_A_A' from Acer website, but I can't run it on another PC, so the *.exe doesn't make a folder in appdata/temp to find the correct *.bin file(s).

Questions:

With *.bin file do I need for installing BIOS 1.14?
Do I need to put it with an exact name and extension (*.bin or *.fd) on the formatted USB-drive?
Must there only be one file on the USB-drive, or does the recovery look itself for the file(s) needed on the complete USB-drive?
Which is the minimum and maximum size of supported USB-drives?
Can it be done with an CF-card 64Gb?
Must they be formatted FAT32, or will FAT also do for the 64Mb-USB-Drive?
What exactly will all the LEDs on the PC do if the BIOS Recovery actually is started, busy, finished?
Procedure:
1. Unplug Power-supply.
2. Press 'FN' and 'ESC' together.
3. Plug in Power-supply whilst maintaining pressed those 2 buttons.
4. whilst maintaining pressed those 2 buttons press the 'power On'-button.
5. And what should I see then? What should happen?
Is there any other way except the USB-drive/'FN'-'ESC' to flash the BIOS on the BIOS-chip? If yes:
1. Procedure to follow.
2. Special Hradware necessary?

If I can't get the BIOS flashed again, I probably need to start looking for a new Motherboard (is initialization (setting MAC-addresses, serial-numbers and other hardware-specific data) of motherboard Acer similar to motherboard HP (with a special program)?)

Thanks a lot in advance for a quick reply.

Accepted answers

All comments

StevenGen

This is what Acer has for the G9-593 laptop in its service guide as a Crisis Disk Utility to recover the bios, so follow the instructions below. If you can't recover the bios then either take your G9-573 to a technician that can reprogram the bios chip and if he can't do that you or he can buy a new bios chip with the last version 1.14 bios online, try this eBay as he has a bios chip for the G9-593 for about USD $23.82 with free postage and replace the bios chip. Its a very easy problem to fix and you don't need to buy a new mainboard. Good luck and hope this helps you out.

G9-593 Crisis Disk

Crisis Disk is a BIOS recovery function, when the BIOS is damaged, users can use it to recovery the BIOS.

1. Prepare an empty bootable USB flash disk, with a preferable visible LED so you can see the USB drives activity light, then format it to FAT32 format file system.

2. Copy BIOS recovery file (in the folder of crisis disk) to the root folder of the USB flash disk and make sure it is renamed to MU5DC.FD.

3. Keep the adaptor inserted and do not plug it out. Shutdown the computer and plug in the USB flash disk.

4. Holding down Fn + ESC key, and power on the computer from off state.

5. After the computer is powered on, release Fn and ESC key, the system will start recovering the BIOS automatically.

6. Then computer will shut down automatically after the recovery work is done.

7. Users can power on the computer to check whether the BIOS has been repaired.

NOTE: The USB flash disk must be format as FAT32. Make sure it is empty before copy recovery BIOS file.

NOTE: The crisis process will take a period of time, and system will be always with no-display from the recovery work start to the end, it is a normal situation, waiting for the process is over, the power led will be off after it is over. Then users can power on the computer

If this answers your question and solved your query please "Click on Yes" or "Click on Like" if you find my answer useful👍

Mike14021973

Hello StevenGen,

thanks for quick reply. Unfortunately that didn't work and was one of my earlier tries. What happens:

I unplug AC-adapter.
I prepared a 8Gb USB-drive like described (FAT32 and only MU5DC.bin on it with changed extension to *.fd, so MU5DC.fd is only file on USB-Drive).
Plug USB-drive in Predator G9-593.
Press 'FN' and 'ESC' together and keep them pressed whilst connecting AC-adapter.
Whilst keeping pressed 'FN' and 'ESC' buttons, press 'Power'-button.
PC starts doing something (fans start turning).
After about 1 minute it shuts down and restarts doing the same after about 10 seconds.
It's stuck in the loop 6-7 (for about 3 hours now).

Questions abou BIOS-Chip;

Is the BIOS-Chip soldered on the board or in a socket?

SMD without any doubt like on your picture if soldered? Classical DIL or smaller?

Is it easy reachable without having to dismantle the whole PC? Can some-one send me a picture? I have soldering-equipment, so it shouldn't be a problem replacing it. Bigger problem will be getting one (I'll start looking for one now).

Thanks a lot in advance,

Michael.

StevenGen

https://community.acer.com/en/discussion/comment/1312204#Comment_1312204

The bios chip is soldered onto the board of the G9-593 laptop, the Acer service guide of the G9-593 doesn't have very clear photos and they are blurred to include as a good guide for you, and I don't want to guide you in the wrong direction. The best thing "if you persist in doing this job yourself" is when you get the new bios chip, have at board and look for a bios chip that looks similar and has the same part number etc, that is why strongly I recommend that you get an experienced technician with the proper micro soldering tools to do this job as its a very simple task with the right tools and someone that knows what they are doing and what chip to look for.

The bios chip definitely needs to be soldered onto the board with a precision micro soldering setup with a microscope to do an 100% precision job, as if you damage any of the traces of the board you will do more damage than what your DIY skills or effort are worth, so I don't suggest that you do this task yourself, but if you have done this before than go for it. Good luck.

If this answers your question and solved your query please "Click on Yes" or "Click on Like" if you find my answer useful👍

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