Forum RSS Feed Follow @ Twitter Follow On Facebook

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
[-]
Welcome
You have to register before you can post on our site.

Username:


Password:





[-]
Latest Threads
[REQUEST] Asus eeepc 1025C
Last Post: biospherebios
Yesterday 11:23 PM
» Replies: 89
» Views: 110714
Lenovo G480 whitelist wifi remove BIOS 6...
Last Post: AS7Alexis
Yesterday 10:23 PM
» Replies: 0
» Views: 47
HP EliteBook 840 g2 NVMe
Last Post: manlopsi
Yesterday 09:07 PM
» Replies: 1
» Views: 171
[HELP] Advanced settings BIOS hp
Last Post: Iarm0620
Yesterday 06:09 PM
» Replies: 0
» Views: 51
[REQUEST] ThinkPad T14 Gen1 Intel BIOS W...
Last Post: Ibm38729
Yesterday 03:29 PM
» Replies: 1
» Views: 209
[REQUEST] HP ProBook 4535s Whitelist Rem...
Last Post: matxav
Yesterday 01:35 PM
» Replies: 5
» Views: 3435
[HELP] BIOS modding to change soldered R...
Last Post: F-18
Yesterday 12:44 PM
» Replies: 0
» Views: 73
Cannot repair or reset bios Lenovo G500 ...
Last Post: POPKAPOPI2222
Yesterday 12:26 PM
» Replies: 0
» Views: 75
[REQUEST] Unlocked ASUS H81M-E/M52AD/DP_...
Last Post: CertifiedCosmos
Yesterday 08:50 AM
» Replies: 1
» Views: 290
[REQUEST] Lenovo IdeaPad S540 (GPETxxWW)...
Last Post: loginnow
Yesterday 03:39 AM
» Replies: 46
» Views: 16114
[REQUEST] Lenovo IdeaPad U310 & U410 (65...
Last Post: Dudu2002
Yesterday 03:25 AM
» Replies: 1768
» Views: 382932
[REQUEST] Lenovo G500 (78CNxxWW) BIOS Un...
Last Post: Dudu2002
Yesterday 03:20 AM
» Replies: 280
» Views: 124951
Fujitsu Esprimo P5710 - unlock [REQUEST]
Last Post: monkeywrench
05-05-2024 12:30 PM
» Replies: 34
» Views: 765
Lenovo Z50-70: CPU update
Last Post: PedroFX
05-04-2024 07:20 PM
» Replies: 6
» Views: 218
My Gateway NV57h has an ACER in BIOS - c...
Last Post: drmrsolds
05-04-2024 05:42 PM
» Replies: 1
» Views: 2084
Z97-PRO(Wi-Fi ac)/USB 3.1
Last Post: Jedrek
05-04-2024 09:49 AM
» Replies: 4
» Views: 2313
[Request] Acer Aspire 3050 unlocked BIOS
Last Post: prowindows62
05-04-2024 07:43 AM
» Replies: 0
» Views: 153
HP H-IG41-uATX 45nm microcode update LGA...
Last Post: goldenhill
05-04-2024 04:49 AM
» Replies: 58
» Views: 56919
Asus h61m-d & xeon e3-1265l v2
Last Post: DeathBringer
05-03-2024 04:28 PM
» Replies: 3
» Views: 264
[REQUEST] - Acer Swift 3 SF314-41G bios ...
Last Post: ersan
05-03-2024 03:03 PM
» Replies: 1
» Views: 201

Verification Failure CH341a - W25Q128FV Help
#1
Good Evening,
 I recently requested the help of getting some features unlocked on my Acer G9-793 Laptop which has a W25Q128FV chip. Dumped fine, Flashed the modded bin and cannot get it to verify through the CH341a program (verification errors!) or boot. The laptop turns on with all lights lit but does not post to bios, sits for 10 seconds and restarts. I've searched the internet high and low for a resolution. I've seen some recommend version 1.18 of CH341a however when I use this it gives an error for the bin being too large. Currently I've tried flashing v1.18, v 1.29, v 1.30, v 1.34 under both W25Q128BV AND W25Q128FV. I have also used AsProgrammer 1.4.0 & 1.4.1. None with success. Has anyone else had any experience dealing with this chip alongside this acer insyde bios? I am getting very tired of repeatedly taking this laptop completely apart due to the chip being directly under the keyboard.  I have double checked my pin configuration on the CH341a itself and I know that is correct. 
 Aside from desoldering the chip out and trying that, I am out of options

Any help is greatly appriciated!
find
quote
#2
So after further examination, I proved out my IC Test Clip and everything looks good, voltages and all. However, I got to looking at the WINBOND chip itself and it looks to be very damaged from the IC Test Clip at the very top of the pins. It is all scraped up and there looks to be wires frayed. Are there multiple wires that run inside each one of the 8 pins? Or am I just seeing things. This would be a great explanation as to why I'm getting inconsistent writes/verify. I ordered some new chips and plan to test and solder them in if it comes to it. Has any one see anything like this damage wise?

Thanks


Attached Files Thumbnail(s)
   
find
quote
#3
Solved!! This chip is very picky which version of CH341A it will use. I also learned that the Test Clamp is an awful way to flash chips, solder if you can!
The solution is to only use CH341A v 1.18. You may have to look for the right copy of this version. The first version I found did not accept .bin's of 16mb claiming they are too big for the program (The acer predator g9 laptop uses a larger 16mb .bin bios). I found a different version which had no problem.
Once you have found the correct version, keep reseating the Test Clip until you detect the chip correctly. You'll see the full chip name show up. Do not try to write/verify without the test clip in correct, it will only fail. I'm going to guess that I flashed this chip 50 times and once I found the pattern, it did consistently work. I'll be making another post about how to recover the Acer Predator g9-973 bios which uses the winbond W25Q128FV chip.

Never give up!
find
quote
#4
I have the same exact problem as you. Im trying to flash a modded bios on Rog gl702zc. Winbond as well. I will try again. Best of luck!
find
quote


Forum Jump:


Users browsing this thread: 2 Guest(s)