Troubleshooting Laptops, Tablets, and Mobile Devices

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BIOS Requests ONLY! Laptop BIOS Requests Go Here! Links to outside pay sites are forbidden and will result in permanent banning for the poster and the domain in the URL being permanently blocked. Topics: 14,457 Posts: 200,536 Last Post: ASUS Vivobook S5602ZA Rev : 2.1	14,457	200,536	ASUS Vivobook S5602ZA Rev : 2.1 by hoaca388 Today, 05:46 AM
Schematic Requests ONLY! Schematic Requests Go Here! Links to outside pay sites are forbidden and will result in permanent banning for the poster and the domain in the URL being permanently blocked. Topics: 5,531 Posts: 32,930 Last Post: ASUS Zephyrus Duo 16 (2023) GX650PY Schematics and Board View	5,531	32,930	ASUS Zephyrus Duo 16 (2023) GX650PY Schematics and Board View by Tondo27 Today, 05:24 AM

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Topics	Statistics	Last Post
Sticky: List of pin compatible Laptop ICs by Th3_uN1Qu3 Started by Th3_uN1Qu3, 12-19-2013, 04:50 AM	341 responses 408,550 views 0 likes	Last Post by m1ch43lzm 04-29-2025, 09:07 PM
Sticky: Laptop battery charging circuit by piernov Started by piernov, 11-15-2020, 01:31 PM	68 responses 77,391 views 0 likes	Last Post by Sametbey 04-17-2025, 12:19 AM
Sticky: Beginner's guidelines by piernov Started by piernov, 09-20-2020, 09:46 AM	150 responses 115,810 views 0 likes	Last Post by AleX.dans.les.nuages 04-10-2025, 09:30 AM
Sticky: Reminder: rules and organization of this section by piernov Started by piernov, 03-31-2023, 06:10 AM	5 responses 5,013 views 0 likes	Last Post by sahamipoor 03-12-2024, 08:39 AM
Closed, Sticky: Other Useful Threads - Laptop Screen Compatibility, Useful ICs, BGA Chip Suppliers, NVidia bumpgate by Admin Started by Admin, 12-27-2023, 03:43 AM	0 responses 964 views 0 likes	Last Post by Admin 12-27-2023, 03:43 AM
Closed, Sticky: IC Marking Codes and Datasheets by SMDFlea Started by SMDFlea, 11-25-2020, 10:18 AM	75 responses 141,490 views 0 likes	Last Post by Guest 07-09-2022, 10:58 AM
Macbook Pro 2016 A1707 820-00281-A not booting by PACh Started by PACh, 01-09-2023, 09:28 AM	2 responses 715 views 0 likes	Last Post by mon2 01-12-2023, 01:15 AM
dell latitude 7490 la-f322p no power by kjchatman Started by kjchatman, 11-30-2021, 10:05 PM	9 responses 1,496 views 0 likes	Last Post by mcplslg123 01-11-2023, 11:02 PM
sony svf153a1yw DA0HKDMB6D0 REV D discrete to uma by nitish300 Started by nitish300, 01-11-2023, 09:57 AM	1 response 526 views 0 likes	Last Post by mon2 01-11-2023, 12:03 PM
Macbook A1932 820-01521 No Image by Instafixx Started by Instafixx, 01-11-2023, 05:53 AM	1 response 435 views 0 likes	Last Post by Instafixx 01-11-2023, 08:41 AM
MS-16P51 missing gpu by rookieme Started by rookieme, 01-11-2023, 06:51 AM	0 responses 402 views 0 likes	Last Post by rookieme 01-11-2023, 06:51 AM
Please Help, Acer Aspire 3 not charging! by roxboy1984 Started by roxboy1984, 02-08-2022, 05:04 AM	8 responses 1,729 views 0 likes	Last Post by gurj1979 01-11-2023, 06:01 AM
No boot Lenovo l590 FL490/FL590 NM-B931 by azemar Started by azemar, 01-02-2023, 08:13 AM	16 responses 1,674 views 0 likes	Last Post by mcplslg123 01-11-2023, 02:53 AM
Samsung NP355V5C QMLE4 LA-8863P REV 2.0 EC Bios by EresboSS Started by EresboSS, 01-10-2023, 08:01 PM	0 responses 590 views 0 likes	Last Post by EresboSS 01-10-2023, 08:01 PM
MacBook A2159 820-01598 Stuck on 5V by mferna14 Started by mferna14, 12-16-2022, 05:03 PM	3 responses 844 views 0 likes	Last Post by mferna14 01-10-2023, 04:22 PM
Question for Dell Latitude 7420 owners by pingaroon Started by pingaroon, 01-10-2023, 04:06 PM	0 responses 296 views 0 likes	Last Post by pingaroon 01-10-2023, 04:06 PM
lenovo v130-15ikb boot problem by Mahr222 Started by Mahr222, 01-10-2023, 03:12 PM	0 responses 307 views 0 likes	Last Post by Mahr222 01-10-2023, 03:12 PM
MacBook Pro 820 00923-A seems to boot but no activity by Stevie_belfast Started by Stevie_belfast, 12-24-2022, 02:46 PM	10 responses 1,518 views 0 likes	Last Post by cyber47 01-10-2023, 02:55 PM
Macbook Pro A1706 (820-00923) no boot if display or Trackpad connected by cyber47 Started by cyber47, 12-20-2022, 02:57 PM	12 responses 1,892 views 0 likes	Last Post by cyber47 01-10-2023, 02:47 PM
Dell E7470 with burned MEC5085 by RS990 Started by RS990, 01-08-2023, 01:13 PM	11 responses 2,429 views 0 likes	Last Post by rediii 01-10-2023, 12:52 PM
Surface Pro 4 - cycling VCC_CORE, no VCCGT by Prott Started by Prott, 01-04-2023, 02:33 PM	8 responses 1,029 views 0 likes	Last Post by Stevedb 01-10-2023, 09:49 AM
mbx-239 no power by ahmarzo Started by ahmarzo, 01-10-2023, 08:22 AM	2 responses 468 views 0 likes	Last Post by ahmarzo 01-10-2023, 09:46 AM
820-01598 stuck at 20V 0.175A by Opunktvoll Started by Opunktvoll, 01-04-2023, 02:01 PM	6 responses 919 views 0 likes	Last Post by Opunktvoll 01-10-2023, 09:11 AM
+1.1V on KSO lines (keyboard) instead of 3.3V ?? by bindiou Started by bindiou, 01-10-2023, 02:20 AM	1 response 284 views 0 likes	Last Post by mon2 01-10-2023, 06:59 AM
DELL XPS L501X will not boot up by ramrk Started by ramrk, 01-10-2023, 12:07 AM	2 responses 566 views 0 likes	Last Post by mcplslg123 01-10-2023, 04:27 AM
Asus UM425U Identify IC by ronelex Started by ronelex, 12-23-2022, 12:44 AM	5 responses 1,070 views 0 likes	Last Post by ronelex 01-10-2023, 04:16 AM
UX31A fan always at max speed by jasko_jacker Started by jasko_jacker, 11-26-2017, 01:44 PM	6 responses 1,439 views 0 likes	Last Post by wpp105 01-09-2023, 09:30 PM
Macbook Pro Retina 13” 820-3476-A (A1502) - missing PM_SLP_S4_L by salopian Started by salopian, 02-27-2021, 07:30 AM	18 responses 4,552 views 0 likes	Last Post by reformatt 01-09-2023, 03:54 PM
Acer Aspire 3 Blue screen of death. by Wardy Started by Wardy, 01-08-2023, 06:40 PM	10 responses 1,103 views 0 likes	Last Post by reformatt 01-09-2023, 03:39 PM
LA-J091P No display output on LCD, has display on HDMI-out by techfreak9356 Started by techfreak9356, 12-24-2022, 01:24 AM	4 responses 1,005 views 0 likes	Last Post by techfreak9356 01-09-2023, 02:44 PM
ASUS/ROG GL553V replacement mosfet by Jenzo Started by Jenzo, 01-07-2023, 01:43 PM	8 responses 968 views 0 likes	Last Post by Jenzo 01-09-2023, 04:31 AM
820-00165 Low Voltage on PPBUS_G3H, No Green Light, No Power by KappaDev Started by KappaDev, 07-18-2022, 12:56 PM	13 responses 2,385 views 0 likes	Last Post by kingskie 01-09-2023, 01:45 AM
HP Omen 17-an108nc - 3long and 2 short/memory error/ after capacitor short on 5V line by ktmmotocross Started by ktmmotocross, 01-03-2023, 06:07 AM	7 responses 765 views 0 likes	Last Post by mon2 01-08-2023, 12:04 PM
MacBook Pro M1 2020 A2338 (NO BACKLIGHT HELP) by XxMicroSoldering Started by XxMicroSoldering, 12-21-2022, 10:13 AM	20 responses 1,825 views 0 likes	Last Post by mon2 01-08-2023, 11:39 AM
BIOS Chip location on HP Elitebook 840 G6 by mrattitude Started by mrattitude, 02-12-2021, 07:47 AM	11 responses 4,931 views 0 likes	Last Post by hoaca388 01-08-2023, 09:51 AM
Hp pavilion dv2500 artificial display by mnciks11 Started by mnciks11, 01-08-2023, 06:06 AM	1 response 320 views 0 likes	Last Post by piernov 01-08-2023, 07:44 AM
15m-dr0012dx (15.6 SABA MB WHL_4 VRAM 18748-1) help with the resistor values by viper_ Started by viper_, 10-20-2021, 04:53 AM	1 response 1,263 views 0 likes	Last Post by smali 01-08-2023, 07:36 AM
820-4924-A Missing PM_SLP_S4_L by powerblackout Started by powerblackout, 01-07-2023, 11:25 PM	1 response 565 views 0 likes	Last Post by powerblackout 01-08-2023, 12:40 AM
HP EliteBook 840 G2 power problem by bollin Started by bollin, 09-17-2018, 10:04 AM	37 responses 5,693 views 0 likes	Last Post by mon2 01-07-2023, 07:05 AM
hp 15-ba073nc bend middle pin on charger touch 19V pin, now have VIN but no start by ktmmotocross Started by ktmmotocross, 12-22-2022, 01:15 AM	3 responses 429 views 0 likes	Last Post by ktmmotocross 01-07-2023, 06:34 AM
Clevo P650RS-G no post with dual-channel memory configuration by Vspeed Started by Vspeed, 01-02-2023, 11:54 AM	4 responses 756 views 0 likes	Last Post by Vspeed 01-07-2023, 05:58 AM
Fx506hc-da0njjmbag0 rev:g by syntaxzone Started by syntaxzone, 01-02-2023, 02:43 AM	5 responses 1,374 views 0 likes	Last Post by syntaxzone 01-07-2023, 03:09 AM
HP Pavilion x360 - 13-s060sa HDD no detection by OKRPKCOMP Started by OKRPKCOMP, 01-01-2023, 08:14 AM	19 responses 1,677 views 0 likes	Last Post by J_PH 01-06-2023, 02:47 PM
820-00165 Sensor Issue by Instafixx Started by Instafixx, 12-22-2022, 01:47 AM	4 responses 603 views 0 likes	Last Post by Instafixx 01-06-2023, 02:37 AM
Lenovo ThinkPad T460 NM-A581 power on only for few seconds by LenBios Started by LenBios, 02-19-2022, 09:10 AM	3 responses 951 views 0 likes	Last Post by platinumsteel 01-05-2023, 06:32 PM
HP PROBOOK 440 G6 Mosfet dying again and again by sect-sin Started by sect-sin, 12-09-2022, 05:03 PM	11 responses 1,279 views 0 likes	Last Post by mcplslg123 01-04-2023, 11:07 PM