Hi guys, I have this elitebook 840 g3 with model no 6050A2892301-MB-A01 that blinks five times on caps lock and num key, I would like to desolder the bios and check it using CH341A programmer, I have noticed that there are two different bioses on this board, could someone enlighten me which one is the main bios and whether I should program the main one or both? Please 🙏
Elitebook 840 g3
Collapse
X
-
1) backup the entire flash before erasing or reflashing it
2) share the top side pics or part number of each flash. Then review the datasheets. The larger density flash is the one that will be the main bios. Other is the ec bios.
3) start with the main bios - be sure the voltage is correct for your flash and programming tool else the flash can be killed.
Comment
-
1) backup the entire flash before erasing or reflashing it
2) share the top side pics or part number of each flash. Then review the datasheets. The larger density flash is the one that will be the main bios. Other is the ec bios.
3) start with the main bios - be sure the voltage is correct for your flash and programming tool else the flash can be killed.
Comment
-
-
It could be the chip itself is bad but woth updating the software for your programmer. Which programmer you used?Comment
-
I used Neo programmer to do it and now it verify OK no problem, but the pc still gives me five blinking codes on caps lock and num lock, I have tried googling it everywhere for the schematic but no success, I have seen some requests here from the people who uses the same laptop but there's none. HP Elitebook 820 G3 6050A2892301-MB-A01Comment
-
Personally not aware of the exact details of your programming software but this QE bit is one of the registers present inside of the flash chip. What I am concerned about is that if you perform a full chip erase - does this also reset this QE bit to a value of '0'? If yes, then the logic board is unable to use the same flash in QSPI (quad SPI) mode. Review the details of your programming software to check if there is a QUAD or QE flag setting. You may have to review the use of another software tool to access this register. If you purchase a fresh chip with the same part number then it will be shipped to you with QE = '1'. Again, not sure if this bit resets to '0' after a full chip erase.
Update: Yes, your tool can do this -> review the SREG configuration and there should be a flag / checkbox for the QE bit. Share a pic of this screen but be sure it is checked to ENABLE this QSPI feature.
Neo Programmer New Software...22/06/2021
- V2.2.0.8
- More Chip IC's Added
- Fixed Bugs
- With SREG edit, possibility to edit QE when the bit is set, otherwise it is disabled.
- 100ms delay between each busy status checks during SPI 25 erase.
- SREG remove protection popup for erase and write SPI memories.
- ajout d'un delais de 10ms apres l'ecriture des status registers et 5ms dans chaque boucle de controle(sauf NAND).Last edited by mon2; 02-16-2024, 11:35 AM.Comment
-
Comment
-
"Quad Output Read Enabled" is set to "Yes" though.OpenBoardView — https://github.com/OpenBoardView/OpenBoardViewComment
-
-
I tried 4 different ram but i have allways the problemComment
Related Topics
Collapse
-
by Vesko356First of all thanks to all of our members who have posted previously all methods posted here.
Please leave a comment if you find something new,or have anything else to add.
-----------------------------------------------------------------------------------------
Find by serial number,model number or series
If you know the laptop serial or model number go to HP support https://support.hp.com/us-en/drivers/laptops .
Enter the serial number or model number and click submit.On the next screen you will have to enter the OS
Operating system and OS version.If...-
Channel: BIOS Requests ONLY!
-
-
by abhorsenHey guys,
Hope you all are doing well. I come here from Win-Raid because I am having issues disabling Flash Protection Range Registers so I can flash my BIOS from within Windows using Intel's IFW tool/using flashrom within Linux, however I cannot due to the above mentioned error.
Here is my thread on Win-Raid detailing the whole process I went through: https://winraid.level1techs.com/t/re...h-gen/95478/27
Essentially I managed to boot into Windows while shorting PINs 1+5 of my audio chip to disable the HAP bit...-
Channel: BIOS & Schematic Requests!
-
-
by lap-top123HI, i have hp elitebook 850 g8, that had a mdm lock. i bought new bios from ebay and programmed it and laptop died. Its takeing only 0.035A and blinking diode white and orange, soldering for sure ok . After that laptop is dead, even i flashed back old one bios and still the same. I need unlocked working bios. Please help.
Hp Elitebook 850 G8
ProdID 52W98EC#ABD
SN# 5CG1458XQ7
Mac-address #1: 84:14:4D:2C:4B:5B
UUID: E36E3883-22CF-486D-B7E8-27F88BB0AC90
Mainboard : 6050A3216701-MB-A01(A1)-
Channel: BIOS Requests ONLY!
-
-
by STKR123Greetings badcaps community,
I havent done this for a long time and want to start it all again, after some evil and annyoing illness.
So I apologize in advance, if some phrases might sound a bit like gibberish or illogical to you.
Im trying my best to fully describe what I plan to achieve and hope I was choosing the right sub-forum for my new adventure.
I have a Elitebook 820 G1 and a Elitebook 840 G2 here.
These ask for a password when entering the BIOS, but boot just fine from the internal SSD.
I learned that desoldering...10-29-2024, 06:03 AM -
by mrrubikHi folks,
I got a Dell Optiplex 7010 micro PC (Exact Model) with 8FC8 BIOS and locked out admin password. I attempted to remove the password by patching the BIOS via info from this thread: https://www.badcaps.net/forum/troubl...ssword-patcher
After flashing the patched the BIOS, the PC is unresponsive with a solid AMBER power LED (not documented in manual anywhere)
Steps I took:- Read BIOS with CH341a, verified hash twice
- Patched
-
Channel: BIOS & Schematic Requests!
- Loading...
- No more items.
Comment