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Schematics Dell 5300 2-in-1 18723-1

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Dell 5300 2-in-1 18723-1
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18723-1.brd
18723-1 BOTTOM.pdf
18723-1 TOP.pdf
18723-1_BANDON_NONTBT_WHL_XB_MB.pdf
Screen Shot 2020-12-17 at 23.43.52.jpg
 

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18723-1 BOTTOM.pdf
761.5 KB · Views: 214

18723-1 TOP.pdf
670.7 KB · Views: 189

18723-1.brd.zip
38.2 MB · Views: 448

18723-1_BANDON_NONTBT_WHL_XB_MB.pdf
10.1 MB · Views: 396

1.23.0.zip
12 MB · Views: 211

Hello everyone,

I’m looking for a working BIOS file for a Dell Latitude 5300 2-in-1, motherboard model Bandon Non-TBT MB A00 (18723-1), with Service Tag: BLRRHW2.

I’ve attached the original BIOS dumps from the device. This board version has two EEPROM chips (one 8MB and one 16MB), and both dumps are included in the attachment. Unfortunately, the current BIOS causes the laptop not to power on.

I’d really appreciate it if someone could share a clean or working BIOS for this board revision.

Thank you in advance for your help!

Best regards,
Tlamatini
I was wondering if anyone could help me repair my BIOS. I’ve already tried some BIOS files shared here, and they work fine, but when I update to the latest version, I get several errors during the Dell logo screen:
“ISST update error,” “Intel Driver Hub update error,” and “ME firmware update error.”
The BIOS updates successfully, but the rest doesn’t :c
 

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Dell 5300 2 in 1.zip
9.5 MB · Views: 1

Hello everyone,

I’m looking for a working BIOS file for a Dell Latitude 5300 2-in-1, motherboard model Bandon Non-TBT MB A00 (18723-1), with Service Tag: BLRRHW2.

I’ve attached the original BIOS dumps from the device. This board version has two EEPROM chips (one 8MB and one 16MB), and both dumps are included in the attachment. Unfortunately, the current BIOS causes the laptop not to power on.

I’d really appreciate it if someone could share a clean or working BIOS for this board revision.

Thank you in advance for your help!

Best regards,
Tlamatini
I was wondering if anyone could help me repair my BIOS. I’ve already tried some BIOS files shared here, and they work fine, but when I update to the latest version, I get several errors during the Dell logo screen:
“ISST update error,” “Intel Driver Hub update error,” and “ME firmware update error.”
The BIOS updates successfully, but the rest doesn’t :c
 

Download list

bbbb.zip
9.3 MB · Views: 1

Not working at the moment :sob:. The laptop does not power on when flashed with this BIOS version. This suggests that there may be corrupted or missing critical data in the original BIOS, possibly related to board-specific configuration or firmware regions.


When a third-party BIOS is programmed, the laptop is able to power on and boot, however several hardware functions are not working correctly, specifically the audio controller and the gyroscope / sensor devices. This behavior indicates that the generic BIOS allows basic power-up but lacks the correct configuration, firmware modules, or descriptors required for full hardware initialization.


At this point, it seems likely that the issue is related to BIOS integrity rather than a hardware fault, and that important board-specific data may be damaged or absent in the original BIOS image.
 

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