toshiba s55t-b when change bios setup from uefi to csm the screen change to black screen and when reprogramm the bios its work but i cant use csm legacy
s55t-b
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by mitchwJust had a customer bring in a HP 14s-fq1010nm to do some maintenance.
After updating the BIOS to the latest (F.35) I get black screen (no backlight turning on). However the backlight turns on if I connect an external display to HDMI, but when booting to Windows, both displays remain black.
After disconnecting internal LCD, and plugging in external display via HDMI, it works on external.
I tried downgrading it using official method - using an USB drive with older BIOS version, but it fails, saying that the BIOS files are corrupted. I used about 5 different older BIOS versions...-
Channel: BIOS Requests ONLY!
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So I couldn't remember my bios password and since it was broken screen, I used to connected to the TV via Type C to HDMI. So I decided to remove the Bios chip and reprogram the Bios chip with ch314a.. when I try to solder Bios on the laptop, one of the Bios leg broke off.. I bought a new blank Bios chip so I can programmed by flashing on the bios.2 Photos
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Channel: BIOS Requests ONLY!
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by iZakreHello everybody!
To put you in context I recently replaced the battery from my HP Pavilion 15 bc400ns with a used one, everything was going good. The same day, I decided to update the BIOS, everything went good. The thing occurred after I let the battery drain iddling on Windows 11 for the second time to calibrate it that the screen did not turn on again, the computer was on but the screen did not turn, like it would not wake from hibernation. I decided to restart the computer but got no video.
The thing is that I had installed TeamViewer and could log into the computer... -
by TechnodocAsus laptop G614JZ-N3012W Rog Strix with i7
Mainboard G634J-PMV-VGT
6050A3441302-MB-A01
2023-02-10
Power button works okay....power light goes on
Red "bottom" leds go on
Charging led works
Fans do not spin, capslock key does nothing, screen stays black
I would like to program the bios again, to rule out a corrupted bios.
However I run into a size error
The bios chip is a Winbond 25R256JVEN
Used my Xgecu T-48 to read the bioschip (using select chip as type XM25QH256B @WSON8, read somewhere...-
Channel: BIOS Requests ONLY!
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by jbonavitaHi, my laptop wont boot at all
With original bios no POST, only LED lights
With alternative BIOS from model TP500LN (flashed via programmer) the notebook works again
Some issues
A- with bios from 500LN, it won't update from bios of model 500LA (from 500LN v203 to 500LA v300)
B- If updated from 500LN version 203 to 300, the battery stops being recognized
Things I tried
1- Update / clear ME: Took the non working bios, made a backup, and did this: https://www.badcaps.net/forum/troubl...theory/trouble...-
Channel: BIOS Requests ONLY!
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