Julian Bailey
Member
Last Activity: 11-29-2024, 06:53 AM
Joined: 09-24-2024
Location: Yorkshire
-
Thank you I will give them a go, but I think the chip is corrupt or died. It reads but takes a long time and when I write a bios to it (even the original) it comes with a verify error 😔... -
hmmm, the BIOS chip is a 25R256JVEN but my CH341A programmer only has 25Q256BV and 25Q256FV as an option when it detects the chip. Could this be the issue?
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"Screenshot 2024-10-23 213746.jpg","data-attachmentid":3490973}[/ATTACH]
Thankshmmm, the BIOS chip is a 25R256JVEN but my CH341A programmer only has 25Q256BV and 25Q256FV as an option when it detects the chip. Could this be the issue?
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"Screenshot...Leave a comment:
-
Ok so Ive pulled the BIOS off the BIOS chip by UC2, see attached.
If someone can take a look and unlock it that would be great.
Service tag: 28SH0F3
Make / Model: Dell Latitude 7420
Motherboard is an i5 11th Gen, 8GB RAM
Motherboard model: GDC31 LA-K371P Rev:3.0 (A02)
Thanks...Leave a comment:
-
Ahhh, sorry, searched online and it said the bios chip was to the left of the WWAN slot!
Will take a look later!
Cheers...Leave a comment:
-
What do you mean sorry?
Thanks...Leave a comment:
-
Hi, info below.
Service tag: 28SH0F3
Make / Model: Dell Latitude 7420
Motherboard is an i5 11th Gen, 8GB RAM
Many thanks...Leave a comment:
-
Hi all
Is anyone able to remove the admin / BIOS password for the attached please?
Many thanks...Leave a comment:
-
I wouldn't feel comfortable, if it was to work again, to go back in to the laptop.
I will however give it a go to see if it can be repaired purely for learning purposes only.
Thank you for your help mon2, it's appreciated....Leave a comment:
-
Leave a comment:
-
Sadly the BQ blew a hole which also took out another chip on the other side causing it to blow a whole in the board
RIP!​Sadly the BQ blew a hole which also took out another chip on the other side causing it to blow a whole in the board
RIP!​...Leave a comment:
-
The usual dcin mosfets are suspects. See the sticky above by [URL="https://www.badcaps.net/member/169897-piernov"]piernov[/URL].
Where is the above sticky sorry?
Thank you.The usual dcin mosfets are suspects. See the sticky above by [URL="https://www.badcaps.net/member/169897-piernov"]piernov[/URL].
Where is the above sticky sorry?
Thank you.The usual dcin mosfets are suspects. See the sticky above by [URL="https://www.badcaps.net/member/169897-piernov"]piernov[/URL].
Where is the above sticky sorry?Leave a comment:
-
Thanks for the reply.
The laptop powers on fine using the HP adaptor with the battery connected and also not connected.
The laptop also powers on fine with just a charged battery plugged in.
I will check the pin outs and reply with my findings.
Thank you....Leave a comment:
-
HP ProBook 445 G8 Battery not charging
Hi all
We have in a HP ProBook 445 G8 laptop with AMD Ryzen 7 CPU. When power is connected the power LED light blinks 5 times then stops. Normally HP laptops will blink this LED 10 times as it does a self test when the AC adaptor is inserted. So there must be some sort of short somewhere.
The battery doesn't charge, and is erratic on the MM voltage. Bench PSU LED pulsates when the battery is connected also. So the fault must be on the charging circuit?
I have gone around the board with a MM and cant find anything
Windows shows the battery fine,...Last edited by Julian Bailey; 10-11-2024, 10:38 AM.
No activity results to display
Leave a comment: