BIOS from HP 15-eh****** dag7hamb8i0 rev i

[janaka]

DAG7HAMB8I0 This board powers on and off...but when I flashed my backup BIOS, the laptop powered on after a few days, and then the BIOS would crash again. Please help me create a new BIOS.
backup here
SN-:5CD201JTXP
Model 15-eh1678AU
proID 552KPA#UUF

[m1ch43lzm]

Try this one I made with the clean F.26 BIOS from HP
DMI 413000-41403F
Windows key+"MPMLock" marker 435000-436FFF

Product ID: 552K5PA#UUF

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But if it restarts in a loop while powering on, and the backlight turns on for a split second, it's that the battery is fully discharged/bad; i own a similar laptop (15-eh1xxx) and it does this when the battery is completely empty, letting it charge for few minutes and it powers on normally
Try without the battery installed, it should power on normally

[janaka]

Try this one I made with the clean F.26 BIOS from HP
DMI 413000-41403F
Windows key+"MPMLock" marker 435000-436FFF

Product ID: 552K5PA#UUF

-----------
But if it restarts in a loop while powering on, and the backlight turns on for a split second, it's that the battery is fully discharged/bad; i own a similar laptop (15-eh1xxx) and it does this when the battery is completely empty, letting it charge for few minutes and it powers on normally
Try without the battery installed, it should power on normally

ok, thanks..I tried when the battery fully charged...now I will try with your bios...

[m1ch43lzm]

TPS65987DDJ PD controller firmware dump from DAG7HAMB8F0 board; in case someone needs it, this laptop also charges from the single USB-C port, or the regular DC jack
Laptop model: 15-eh0xxx; should work also with 15-eh1xxx
IC: MX25L8006E, U6102

Content matches the first 0xB0BFh with DEVFW\Current\tps65988a.bin when you create a BIOS recovery USB from BIOS ver. F.28, also present on the EFI system partition, the rest is padded with zeros to fill 1MB

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DAG7HAMB8E0, DAG7HAMB8F0 and DAG7HAMB8I0 use different main BIOS depending on CPU model, just minor parts differences between those boards
BID: 87C5 - Ryzen 4000 series CPU (Renoir), laptop model 15-eh0xxx
BID: 88D0 - Ryzen 5000 series CPU (Lucienne), laptop model 15-eh1xxx
BID: 87C6 - Athlon Gold 3150 CPU, laptop model 15-eh0xxx, maybe different board number

[Ludmilaharhordina]

My laptop won't turn on. I need a BIOS with a clean ME region. Please help. HP Pavilion 15-eh1134ua
DAG7HAMB81I0 Rev I
AMD Ryzen 3 5300U Processor
Serial number 5CD3477FJ2

I've attached my old BIOS.

[SMDFlea]

My laptop won't turn on. I need a BIOS with a clean ME region. Please help. HP Pavilion 15-eh1134ua
DAG7HAMB81I0 Rev I
AMD Ryzen 3 5300U Processor
Serial number 5CD3477FJ2

I've attached my old BIOS.

Read the post above yours. Your BID is 88D0 / 088D0 .There is a virgin bios at post # 9 https://www.badcaps.net/forum/troubl...95#post3450195

Copy the DMI from your backup to the new bios with a hex editor. Only the first set of offsets are relevent ( DMI 413000 - 41403F ) as there is no windows key, the 15-eh1134ua shipped with FreeDOS.

https://support.hp.com/ph-en/product...29?sku=9H8N1EA

[Ludmilaharhordina]

thank you

[m1ch43lzm]

My laptop won't turn on. I need a BIOS with a clean ME region. Please help. HP Pavilion 15-eh1134ua
DAG7HAMB81I0 Rev I
AMD Ryzen 3 5300U Processor
Serial number 5CD3477FJ2

I've attached my old BIOS.

HP Pavilion Laptop 15-eh1134ua (9H8N1EA)
BIOS ver F.27
BID 088D0
S/N 5CD3477FJ2

[Ludmilaharhordina]

thank you

[PhoneFIX REPUBLIC]

dag7hamb8i0 rev i AMD
serial #: 5CD1522LCX
ProdID: 5CO66EA#A2N

Sometimes poer on, sometimes.
when power on, after several minutes or when it shutdown, not power on again.
after few hours, power5 on again.

tried the bin from hp support, but no power..

[m1ch43lzm]

dag7hamb8i0 rev i AMD
serial #: 5CD1522LCX
ProdID: 5CO66EA#A2N

Sometimes poer on, sometimes.
when power on, after several minutes or when it shutdown, not power on again.
after few hours, power5 on again.

tried the bin from hp support, but no power..

Someone flashed BIOS before, DMI data is empty, MPM is unlocked (it has "Manufacture Programming Mode is in unlock mode" text in a blue rectangle at boot)
BID 088D0

Try post # 28, edit DMI with HP BCU if it boots

Serial Number :  5CD1522LCX
Product Number :  5C066EA#A2N
Product name:  HP Pavilion Laptop 15-eh1xxx
Build ID: 21WW2FTT601#SA2N#DA2N
Feature byte: 3K6b7K7MaBapaqasawbCbhcbdUdXdpdqfPhZm9.Nq
Board CT number: On a sticker on top of RAM slots CT: )

Don't think it's a BIOS issue, check for hardware problem, search for DAG7HAMB8E0 schematics in this forum, 99% similar except CPU VCORE section

[PhoneFIX REPUBLIC]

Someone flashed BIOS before, DMI data is empty, MPM is unlocked (it has "Manufacture Programming Mode is in unlock mode" text in a blue rectangle at boot)
BID 088D0

Try post # 28, edit DMI with HP BCU if it boots

Serial Number : 5CD1522LCX
Product Number : 5C066EA#A2N
Product name: HP Pavilion Laptop 15-eh1xxx
Build ID: 21WW2FTT601#SA2N#DA2N
Feature byte: 3K6b7K7MaBapaqasawbCbhcbdUdXdpdqfPhZm9.Nq
Board CT number: On a sticker on top of RAM slots CT: )

Don't think it's a BIOS issue, check for hardware problem, search for DAG7HAMB8E0 schematics in this forum, 99% similar except CPU VCORE section

my bad, i upload the wrong back up...
orig bin file back up attached.

[m1ch43lzm]

my bad, i upload the wrong back up...
orig bin file back up attached.

Try, DMI and Win key inserted

HP Pavilion Laptop 15-eh1022nx (5C066EA)
BID 088D0
BIOS ver. F.31 available only from Windows Update for 15-eh1xxx... I own this laptop
S/N 5CD1522LCX
DMI 413000-41403F
Win key 435000-43503F

Fix and enhancements:
- Provides improved security. NOTE: Due to the security updates installed by this BIOS update, previous BIOS versions cannot be reinstalled after this BIOS update is run.

I guess they really mean it, haven't tried downgrading BIOS in my laptop to check, HP added that note since BIOS F.27; F.26 and below you can flash previous versions

[SMDFlea]

BIOS ver. F.31 available only from Windows Update for 15-eh1xxx... I own this laptop

All versions from windows update - https://www.catalog.update.microsoft...3-777119770D99