AH TECHNO SERVICE ~BIOS & SCHEMATICS (@hrtechno) is a public Telegram channel for schematics + BIOS. Enginerys has indexed 1,077 files from it: 662 schematics, 324 archives, 78 BIOS dumps.
- DDEL 5420-203068-1 OK TESTED ( SERVICE TAG FIX)
Dell Latitude 5420 firmware package for the Wistron-designed board 203068-1, marked as tested and working, with a service tag fix noted in the name.
Archive · 203068-1 · 8.98 MB · 4 Oct 2026Archive rar8.98 MB - Dell Precision 5680-64mb bios-LA-M551P
BIOS image for the Dell Precision 5680 workstation laptop, board LA-M551P, with the name pointing to a 64 Mb (8 MB) flash chip.
BIOS · LA-M551P · 13.6 MB · 2 Oct 2026BIOS rar13.6 MB - LA-K161P OK TESTED
RAR archive for a Compal board numbered LA-K161P, labelled as OK and tested by whoever prepared it.
Archive · LA-K161P · 24.1 MB · 7 Aug 2026Archive rar24.1 MB - DELL LATITUDE 5340-213192-1 ME CLEAN OK TESTED
BIOS firmware package for the Dell Latitude 5340, built around a board numbered 213192-1, which follows the Wistron numbering pattern.
BIOS · 213192-1 · 13.9 MB · 7 Aug 2026BIOS rar13.9 MB - LENOVO T14-GEN2 - NM-D351 OK TESTED
Archive for the Lenovo ThinkPad T14 Gen 2 built on motherboard NM-D351, labelled as OK tested. The NM- prefix belongs to the LCFC numbering used for Lenovo designs.
Archive · NM-D351 · 30.8 MB · 6 Apr 2026Archive rar30.8 MB - LENOVO T14s - NM-D362 REV 1.0
Lenovo ThinkPad T14s material packed in a RAR archive for LCFC motherboard NM-D362, revision 1.0.
Archive · NM-D362 · 31.3 MB · 6 Apr 2026Archive rar31.3 MB - LENOVO LEGION WITH 16MB 2MB -NM-D562 OK TESTED
Lenovo Legion firmware archive for LCFC motherboard NM-D562, marked OK tested. The name mentions 16MB and 2MB, which points to two flash images, likely a 16 MB main BIOS…
Archive · NM-D562 · 4.98 MB · 5 Apr 2026Archive rar4.98 MB - HP ELITEBOOK X360 830 G8 6050A3219701 MB OK TESTED ENDPOINT FIX
RAR archive for the HP EliteBook x360 830 G8, motherboard 6050A3219701, an Inventec-style board number.
Archive · 6050A3219701 · 35.8 MB · 21 Mar 2026Archive rar35.8 MB - MPS Programming Software
Archive of about 12 MB described by its name only as MPS programming software; the name gives no version, operating system or supported device list.
Software · 12.0 MB · 7 Mar 2026Software zip—12.0 MB - Lenovo V530s-071CR IB365CX DMI & LAN FIX
Lenovo V530s-07ICR BIOS package marked IB365CX, shipped as a 13.2 MB RAR archive. According to the name, the dump has had its DMI data and LAN settings fixed, which…
BIOS · 13.2 MB · 2 Mar 2026BIOS rar—13.2 MB - LEMOVO TINY M80q IQ4X0IL1 ok tested
RAR archive of 25.6 MB for the Lenovo ThinkCentre M80q Tiny (brand misspelled Lemovo in the name), carrying the board code IQ4X0IL1 and marked ok tested.
Archive · 25.6 MB · 25 Feb 2026Archive rar—25.6 MB - SERVER R730RX OK TESTED BIOS
BIOS firmware archive labelled for a server R730RX and marked as OK tested, compressed in RAR at 10.2 MB.
BIOS · 10.2 MB · 9 Feb 2026BIOS rar—10.2 MB - SERVER PROLIANT -DL360 GEN9 OK TESTED
Archive for an HP ProLiant DL360 Gen9 server, marked OK tested, packed as a 15.6 MB RAR.
Archive · 15.6 MB · 9 Feb 2026Archive rar—15.6 MB - INTEL NUC MODEL -NUC5CPYH-OK TESTED
Archive for the Intel NUC model NUC5CPYH, a compact mini PC, marked as tested and working.
Archive · 11.1 MB · 31 Jan 2026Archive rar—11.1 MB - Hp Thinclient t628 ok bin
BIOS image for the HP t628 thin client, marked as a working BIN, packed in a 3.70 MB RAR.
BIOS · 3.70 MB · 30 Jan 2026BIOS rar—3.70 MB - HP 840 G5 - KEYBORD TRACKBALL ISSUE FIX-6050A2945601-MB-A01
Repair archive for the HP EliteBook 840 G5 aimed at fixing a keyboard and trackball (pointing stick) fault, built around motherboard 6050A2945601-MB-A01.
Archive · 6050A2945601 · 14.9 MB · 22 Jan 2026Archive rar14.9 MB - 32' tv led P50-D68V3.0
Archive of 3.94 MB for a 32-inch LED TV using a board identified as P50-D68V3.0. The name does not state what the RAR contains, which may be firmware, a schematic or a…
Archive · 3.94 MB · 19 Dec 2025Archive rar—3.94 MB - P50-D68V3.0
RAR archive of 3.93 MB labelled only with the board code P50-D68V3.0, apparently a TV mainboard with version 3.0 in its marking.
Archive · 3.93 MB · 19 Dec 2025Archive rar—3.93 MB - ECS H110M-SI02 WORKING 100%
Archive for the ECS H110M-SI02 desktop motherboard, labelled as 100% working, packed as a 5.98 MB RAR.
Archive · 5.98 MB · 12 Dec 2025Archive rar—5.98 MB - A2141-820-01041-07-512GB NAND DETA
Apple A2141 logic board archive for board 820-01041, labelled as a 512GB NAND data package.
Archive · 820-01041 · 42.1 MB · 7 Dec 2025Archive rar42.1 MB - HP T640 THIN CLIENT 6050A3048701-MB OK TESTED
Firmware archive for the HP t640 thin client, motherboard 6050A3048701-MB, marked OK and tested, in a 4.78 MB RAR.
Archive · 6050A3048701 · 4.78 MB · 30 Oct 2025Archive rar4.78 MB - POS BORD
Firmware archive with a vague name that only suggests a POS board, probably a point-of-sale terminal mainboard, with no brand, model or board number stated.
BIOS · 3.36 MB · 3 Sept 2025BIOS rar—3.36 MB - 1023-TI3-EDP
RAR archive labelled 1023-TI3-EDP, 4.76 MB, with no brand or device named. The EDP part probably refers to an Embedded DisplayPort panel connection, and TI3 may be a…
Archive · 4.76 MB · 3 Sept 2025Archive rar—4.76 MB - XgproV1296 Setup
Installer package for Xgpro version 12.96, the Windows control software for XGecu TL866 and T48 series universal programmers, supplied as a 30 MB rar archive.
Software · 30.0 MB · 31 Aug 2025Software rar—30.0 MB - OptiPlex 3060 ssf 17539-1 OK BIN
BIOS dump for the Dell OptiPlex 3060 small form factor desktop with mainboard 17539-1, marked as tested and working, packed in a 6.66 MB RAR archive.
BIOS · 17539-1 · 6.66 MB · 12 Aug 2025BIOS rar6.66 MB - Dell Precision 7750 LA-J181P 32MB MEN -GFX 1MB TYPE-C- 1MBArchive · LA-J181P · 25.4 MB · 25 Jul 2025Archive rar25.4 MB
- Compal LA-M401P Boardview
Boardview for the Compal LA-M401P motherboard, packed in a RAR archive of 3.65 MB. The LA-xxxxP code is Compal's standard numbering for laptop mainboards it builds for…
Boardview · LA-M401P · 3.65 MB · 16 Jul 2025Boardview rar3.65 MB - hp chromebook x360 14 g1 La-g632p ok fix win 10
Firmware package for the HP Chromebook x360 14 G1 on Compal board LA-G632P, compressed as a RAR archive.
BIOS · LA-G632P · 3.32 MB · 9 Jul 2025BIOS rar3.32 MB - HP OMEN -DAG3EMB8D0 OUTIMAGE
HP Omen firmware archive tied to the Quanta-numbered board DAG3EMB8D0, labelled as an outimage.
Archive · DAG3EMB8D0 · 7.76 MB · 19 May 2025Archive rar7.76 MB - A1278 -820-3115-B OK U BOS2 BIN
Firmware for an Apple MacBook model A1278 on logic board 820-3115, revision B, marked as working (OK). Apple uses the 820-xxxx pattern for logic board part numbers.
BIOS · 820-3115 · 3.89 MB · 21 Apr 2025BIOS rar3.89 MB - HP 800 G4 SSF
Archive for the HP EliteDesk or ProDesk 800 G4 in small form factor, compressed RAR of about 7 MB.
Archive · 7.03 MB · 12 Mar 2025Archive rar—7.03 MB - Lenovo V530s-071CR IB365CX.
RAR archive of about 6.5 MB for the Lenovo V530s with tokens 071CR and IB365CX, the latter likely the motherboard code, though the name does not state what files are…
Archive · 6.52 MB · 12 Mar 2025Archive rar—6.52 MB - MPM HP TOOLS
Software archive of about 30.1 MB titled MPM HP Tools. The name suggests utilities for HP machines relating to manufacturing programming mode, a state that HP service…
Software · 30.1 MB · 13 Feb 2025Software rar—30.1 MB - hp thinclient t510
Archive linked by its name to the HP t510 thin client, compressed as a 762 KB RAR. The name does not say what is inside, so it may hold a BIOS image, boardview or…
Archive · 762 KB · 8 Feb 2025Archive rar—762 KB - HP 840 G6 FIX DMI NO ERORRBIOS · 20.6 MB · 3 Feb 2025BIOS zip—20.6 MB
- HP 260 G4 TINY PC -DMI FIX- NO ERORR -DAF90MB16B0BIOS · DAF90MB16B0 · 7.68 MB · 23 Jan 2025BIOS rar7.68 MB
- UEFI Replace ToolSoftware · 5.63 MB · 23 Jan 2025Software rar—5.63 MB
- latitude 5300 2-in-1 18717-1 ME CLEANED f
BIOS dump for the Dell Latitude 5300 2-in-1 on Wistron board 18717-1, with the Intel Management Engine region cleaned, packed as an 11.1 MB RAR.
BIOS · 18717-1 · 11.1 MB · 27 Dec 2024BIOS rar11.1 MB - ASUS K53SV OK TESTED
Archive for the ASUS K53SV laptop, 1.50 MB, marked OK tested; the name does not say whether it holds a BIOS dump, EC firmware or other repair data.
Archive · 1.50 MB · 25 Dec 2024Archive rar—1.50 MB - LENOVO UNLOCK EC T491 X390 NM-B891
Unlocked EC firmware for Lenovo ThinkPad T491 and X390, LCFC board NM-B891, provided as a 16.2 MB RAR archive. NM-prefixed numbers follow LCFC, Lenovo's own design team.
BIOS · NM-B891 · 16.2 MB · 25 Dec 2024BIOS rar16.2 MB