T470 bios needed

[Vesko356]

Re: T470 bios needed

it was sitting next to the cmos battery, smiling at me

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[Jetro007]

Re: T470 bios needed

Absolutely.

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I'm not sure my solder skills are up to it.
isn't the fact it starts reading a sign the spi communication is ok?

Can the reason be it hangs, it is corrupt?

[Vesko356]

Re: T470 bios needed

I'm not sure my solder skills are up to it.
isn't the fact it starts reading a sign the spi communication is ok?

Can the reason be it hangs, it is corrupt?

No, if it was "corrupt", the laptop wouldn't turn on.
It's just the crappy chinese clip doesn't make a good contact at some of the chip legs, or/and the cable has become unsoldered on one of the pins (the cable is also thin and crappy), that's why.

Edit; You have to read the chip, then erase it, then program it with the patched dump, then erase it again and program it again with the original dump. I just don't see how it's going to happen with that crappy clip...

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[Jetro007]

Re: T470 bios needed

Yeah, i get mixed reactions from different usb ports. Maybe the chip is drawing to much power. got a 90% read one time.

The laptop doesn't realy turn on.
The keyboard illumination and power button briefly turn on, then everything shuts down.

I'll try to desolder it tomorrow.
If i get succesfull reads, schould i flash the bios posted in the beginning of this thread?

Thx for the advice so far

[Vesko356]

Re: T470 bios needed

Yeah, i get mixed reactions from different usb ports. Maybe the chip is drawing to much power. got a 90% read one time.

The laptop doesn't realy turn on.
The keyboard illumination and power button briefly turn on, then everything shuts down.

I'll try to desolder it tomorrow.
If i get succesfull reads, schould i flash the bios posted in the beginning of this thread?

Thx for the advice so far

Oops my mistake - I did not read the whole your first post because of the obviously smaller archive, thought the goal was unlocking but that doesn't change the meaning of what I said, the chip very rarely happens to defect, the much more likely cause of your problems is what I already told you.

BTW what do you mean by "corrupted in a bad flash" - during the Windows update, or something else?

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[Jetro007]

Re: T470 bios needed

yes, during a windows 'system' update.
when i saw it reboot into a flash, i scrambled for my charger, because i didn't want the battery to die, but i must have bumped it or so.

It's my old work laptop, but the password was already removed. was running perfectly until the windows update went wrong.

[Vesko356]

Re: T470 bios needed

yes, during a windows 'system' update.
when i saw it reboot into a flash, i scrambled for my charger, because i didn't want the battery to die, but i must have bumped it or so.

It's my old work laptop, but the password was already removed. was running perfectly until the windows update went wrong.

OK everything is clear, there is no way the chip to get damaged because of this, you just interrupted the update, and it turned out to be the cause of the issue, but that doesn't mean the chip is already defective.

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[gdunk86]

Re: T470 bios needed

Hello Everyone,

I need BIOS for My Lenovo T470 20JN-S0L303 S/N: PF-151WQL
which is IC U49 code WINBOND 25Q128JV

and I also need BIOS for for IC U15 code WINBOND 25Q80JV

My Lenovo T470 condition now is black screen after softstart, Lenovo Logo doesn't appear after backlight keyboard was dimmed.

Thank you

[kulokutoys]

Re: T470 bios needed

Device: Laptop
Brand: lenovo
Model: T470
S/N: PF-117EK7
type 20HE-S18S08
Request: Repair
boot looping

[Salmus666]

Re: T470 bios needed

Device: Laptop
Brand: lenovo
Model: T470
S/N: PF-0ST5XB
type 20HD-0001MX
Request: No power on , only charge. Power on with other 20HD bios, but boot loop. Bios corrupted?

[kulokutoys]

Re: T470 bios needed

up for the request above. thanks

[huss584]

Re: T470 bios needed

Please need Clean BIOS

[Vesko356]

Re: T470 bios needed

Please need Clean BIOS

Read the rules before posting:
RULES UPDATE for BIOS requests/offers *AVOID BANNING, READ BEFORE POSTING*

You MUST:

• Read BIOS guides, methods, resources and tools
• Try the method at BIOS guides, methods, resources and tools before requesting help
• Explain you were not able to succeed with the methods at BIOS guides, methods, resources and tools
• Use search function in case someone already answered your request
• Post under a related thread if it exists
• Provide the full machine model number, serial number (or Service tag, SNID) and the board model number (see https://www.badcaps.net/forum/showthread.php?t=88758 )
• Name your thread with model numbers and request
• Provide a BIOS/EC dump if possible
• Attach files directly to your post instead of linking to external websites
• Post what the problem is, be specific - black screen, no boot, running slow, password.
  Do NOT post "clean me", "clear bios", "clean bios", "bios need" or other such terms

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[huss584]

Re: T470 bios needed

I Following the steps step by step but i got this error
in these thread https://www.badcaps.net/forum/showthread.php?t=115358
The problem is the Charging The “Charge” indication remains on the battery after removing the charger

i need help please
to clean my BIOS

the SN : PC090Q0V
the MTM: 20HD000EIV

Read the rules before posting:
RULES UPDATE for BIOS requests/offers *AVOID BANNING, READ BEFORE POSTING*

You MUST:

• Read BIOS guides, methods, resources and tools
• Try the method at BIOS guides, methods, resources and tools before requesting help
• Explain you were not able to succeed with the methods at BIOS guides, methods, resources and tools
• Use search function in case someone already answered your request
• Post under a related thread if it exists
• Provide the full machine model number, serial number (or Service tag, SNID) and the board model number (see https://www.badcaps.net/forum/showthread.php?t=88758 )
• Name your thread with model numbers and request
• Provide a BIOS/EC dump if possible
• Attach files directly to your post instead of linking to external websites
• Post what the problem is, be specific - black screen, no boot, running slow, password.
  Do NOT post "clean me", "clear bios", "clean bios", "bios need" or other such terms

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[antskull]

Re: T470 bios needed

thanks, work fine on my board CT470 NM-A931 Rev 2.0

[essentialphone]

Re: T470 bios needed

Hey friends.
Complete erased my W25Q80JV before tryin to flash one of ur bios
and now get big toruble, all ur bios 16mb, but my chip only 8mb, haha, what i can do now ;0
TYPE 20JN with 6300U

[Maxpower3]

Re: T470 bios needed

Hey friends.
Complete erased my W25Q80JV before tryin to flash one of ur bios
and now get big toruble, all ur bios 16mb, but my chip only 8mb, haha, what i can do now ;0
TYPE 20JN with 6300U

https://www.allservice.ro/forum/images/T470_bios.jpg

[ahkh_72]

Re: T470 bios needed

Hey friends.
Complete erased my W25Q80JV before tryin to flash one of ur bios
and now get big toruble, all ur bios 16mb, but my chip only 8mb, haha, what i can do now ;0
TYPE 20JN with 6300U

send your MB model.

[Maxpower3]

Re: T470 bios needed

Hey friends.
Complete erased my W25Q80JV before tryin to flash one of ur bios
and now get big toruble, all ur bios 16mb, but my chip only 8mb, haha, what i can do now ;0
TYPE 20JN with 6300U

here W25Q80BL type 20HE
freshly read

[viorel.m]

Re: t470 bios corrupted



confirmed bios T470 (Type 20JM, 20JN) Laptop (ThinkPad) - Type 20JN works correctly

It worked on my T470 - Type 20JN

Thank you so much.