Troubleshooting Laptops, Tablets, and Mobile Devices

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Topics: 14,817 Posts: 211,472

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Dell 7740 Bios locked J3JSD43-8FC8

14,817 Topics

211,472 Posts

Dell 7740 Bios locked J3JSD43-8FC8

by lapfix

Today, 02:16 AM

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Schematic Requests ONLY!

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Topics: 5,651 Posts: 33,831

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Dell Precision 7740 LA-H281P Boardview and schematics

5,651 Topics

33,831 Posts

Dell Precision 7740 LA-H281P Boardview and schematics

by AL._.EX

Today, 11:12 AM

Today Last Post

Topics	Statistics	Last Post
Sticky: Reminder: rules and organization of this section by piernov Started by piernov, 03-31-2023, 06:10 AM	6 responses 5,308 views 0 reactions	Last Post by allantech 07-04-2025, 05:56 AM
Sticky: Beginner's guidelines by piernov Started by piernov, 09-20-2020, 09:46 AM	152 responses 118,871 views 0 reactions	Last Post by zarkuz 06-02-2025, 09:53 AM
Sticky: Laptop battery charging circuit by piernov Started by piernov, 11-15-2020, 01:31 PM	69 responses 79,062 views 0 reactions	Last Post by saveelektro 05-09-2025, 02:56 PM
Sticky: List of pin compatible Laptop ICs by Th3_uN1Qu3 Started by Th3_uN1Qu3, 12-19-2013, 04:50 AM	342 responses 411,000 views 0 reactions	Last Post by Duranitron 05-01-2025, 06:24 PM
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 1,058 views 0 reactions	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 146,874 views 0 reactions	Last Post by SMDFlea 07-09-2022, 10:58 AM
Closed: Microsoft Surface Go2 bios need by mesut Started by mesut, 02-24-2024, 06:29 PM	3 responses 264 views 0 reactions	Last Post by Vesko356 02-25-2024, 05:05 AM
thinkpad e490 type-c parts by akioakio Started by akioakio, 02-24-2024, 03:55 PM	2 responses 166 views 0 reactions	Last Post by akioakio 02-25-2024, 03:37 AM
Asus X541 charging issue by IamPritesh Started by IamPritesh, 11-16-2022, 11:28 AM	6 responses 1,440 views 0 reactions	Last Post by eduardsk 02-25-2024, 03:15 AM
Dell 15 5570 LA-F115P wont start after it was repaired by Bogdan Kolybaba Started by Bogdan Kolybaba, 02-22-2024, 11:15 AM	20 responses 443 views 0 reactions	Last Post by Bogdan Kolybaba 02-24-2024, 05:05 PM
Laptop LCD Panel Upgrade (HP Elitebook G8 845) by nobbnobb1 Started by nobbnobb1, 02-24-2024, 04:45 PM	0 responses 75 views 0 reactions	Last Post by nobbnobb1 02-24-2024, 04:45 PM
Compaq CQ61 by Onabit Started by Onabit, 02-11-2024, 01:17 PM	2 responses 40 views 0 reactions	Last Post by Onabit 02-24-2024, 03:53 PM
Samsung A53 5G No touch by unimatrix93 Started by unimatrix93, 04-13-2023, 07:45 AM	28 responses 2,784 views 0 reactions	Last Post by chipon 02-24-2024, 12:18 PM
X1 Carbon Gen 8 by thebridge Started by thebridge, 02-24-2024, 11:13 AM	0 responses 70 views 0 reactions	Last Post by thebridge 02-24-2024, 11:13 AM
Macbook Pro A1989 fallen, reboots if touchbar connected by modtool Started by modtool, 11-10-2023, 07:42 AM	3 responses 404 views 0 reactions	Last Post by Stephen 02-23-2024, 10:56 AM
MacBook Pro 13" 2020 A2289 - Board issue by Stephen Started by Stephen, 02-21-2024, 03:02 PM	1 response 136 views 0 reactions	Last Post by Stephen 02-23-2024, 10:54 AM
MSI GF63 IACEN component identify by summerwhite Started by summerwhite, 10-24-2023, 07:38 PM	3 responses 788 views 0 reactions	Last Post by Rightfullzig 02-23-2024, 09:53 AM
What thermal imaging camera do you use? by Jane Started by Jane, 02-22-2024, 02:30 PM	2 responses 125 views 0 reactions	Last Post by Prott 02-23-2024, 09:21 AM
Dell Precision 5530 15" died to blown chip. Replaced chip and now only get momentary fans, lights, no screen or boot by joesmoe91 Started by joesmoe91, 02-22-2024, 07:38 PM	5 responses 306 views 0 reactions	Last Post by joesmoe91 02-23-2024, 07:43 AM
Dell Latitude E5550 LA-A911P rev 1 No Power by orion78fr Started by orion78fr, 02-22-2024, 10:06 AM	3 responses 214 views 0 reactions	Last Post by orion78fr 02-23-2024, 04:54 AM
HP 820 G1 - Product Information not Valid by pieciak Started by pieciak, 02-22-2024, 08:57 AM	4 responses 379 views 0 reactions	Last Post by pieciak 02-23-2024, 02:27 AM
Lenovo E14 Gen 2 TPM chip swap for data recovery by Rezid Started by Rezid, 02-22-2024, 12:49 PM	0 responses 153 views 0 reactions	Last Post by Rezid 02-22-2024, 12:49 PM
Dell AC adapter - 1 wire protocol. How to initiate to check if adapter works. by Bogdan Kolybaba Started by Bogdan Kolybaba, 02-20-2024, 07:41 PM	2 responses 229 views 0 reactions	Last Post by Bogdan Kolybaba 02-22-2024, 10:20 AM
Asus S510U no display (board X510UN) by penhitam Started by penhitam, 02-21-2024, 07:41 AM	2 responses 209 views 0 reactions	Last Post by penhitam 02-22-2024, 08:31 AM
HP Omen 17-W202NV Error 90D by tech_guru Started by tech_guru, 02-22-2024, 07:15 AM	1 response 201 views 0 reactions	Last Post by SMDFlea 02-22-2024, 07:24 AM
Bios XM25QU64 error by superdota2 Started by superdota2, 12-01-2020, 01:58 AM	5 responses 1,397 views 0 reactions	Last Post by Zibbo 02-22-2024, 05:05 AM
Acer Travelmate 8472 DAZQ3JMB8A0 .starting only consuming 0.01 Amps by ravi_1617 Started by ravi_1617, 01-09-2024, 11:55 PM	3 responses 102 views 0 reactions	Last Post by piernov 02-22-2024, 02:52 AM
820-00840 PP3V3_S5 shorted by bamboofuto Started by bamboofuto, 02-21-2024, 01:18 AM	10 responses 237 views 0 reactions	Last Post by bamboofuto 02-22-2024, 02:32 AM
Nitro AN515-55 not booting by felix27 Started by felix27, 02-20-2024, 04:53 PM	4 responses 161 views 0 reactions	Last Post by felix27 02-22-2024, 02:03 AM
Acer Aspire E5-574-52RH - black screen by DaniK Started by DaniK, 02-21-2024, 06:27 AM	3 responses 138 views 0 reactions	Last Post by DaniK 02-22-2024, 12:33 AM
MacBook Pro 13'' M2 A2338 get 5V 0.01-0.02a does not boot. 820-02773 by TheNuclearOption Started by TheNuclearOption, 02-20-2024, 05:09 PM	1 response 257 views 0 reactions	Last Post by TheNuclearOption 02-21-2024, 01:05 PM
motherboard short - lenovo thinkbook 13s-iml model name 20rr by shuky Started by shuky, 02-19-2024, 06:46 AM	4 responses 228 views 0 reactions	Last Post by shuky 02-21-2024, 08:45 AM
Resistor value - Motherboard dumbledo - 6050a2985501 by Sintez Started by Sintez, 02-21-2024, 04:27 AM	0 responses 125 views 0 reactions	Last Post by Sintez 02-21-2024, 04:27 AM
2019 macbook air A1932 MDM removal by blacky0425 Started by blacky0425, 04-14-2022, 09:20 AM	5 responses 1,022 views 0 reactions	Last Post by yajdeeks 02-21-2024, 01:47 AM
I have a Lenovo Thinkpad E420 and I have the following problem, let's see if someone can help me or help me, thank you by german_20ar Started by german_20ar, 02-20-2024, 08:58 PM	2 responses 79 views 0 reactions	Last Post by mcplslg123 02-20-2024, 11:01 PM
rog strix g733qs thinks battery is plugged in even it is removed (power problem) by swammyw Started by swammyw, 02-11-2024, 12:52 PM	3 responses 115 views 0 reactions	Last Post by swammyw 02-20-2024, 06:13 PM
Asus GL703GM short by retrorepair2 Started by retrorepair2, 03-02-2023, 07:13 PM	68 responses 3,349 views 0 reactions	Last Post by Vesko356 02-20-2024, 02:32 PM
ASUS FX504G not charging by Phil916 Started by Phil916, 02-13-2024, 02:35 AM	11 responses 345 views 0 reactions	Last Post by Phil916 02-20-2024, 10:29 AM
IPad activation lock by davg Started by davg, 07-07-2021, 07:58 PM	30 responses 4,727 views 0 reactions	Last Post by Tech Wizard 02-19-2024, 11:49 PM
HP Pavillion 15-EC - dead Ryzen CPU? by magneh Started by magneh, 02-15-2024, 09:52 AM	4 responses 235 views 0 reactions	Last Post by magneh 02-19-2024, 05:39 AM
HP Pavilion 15-dk1056wm previous liquid damaged. by Spent5 Started by Spent5, 02-18-2024, 11:47 AM	1 response 120 views 0 reactions	Last Post by mcplslg123 02-18-2024, 11:00 PM
Lenovo Ideapad 100-151BD by Gecko-EC Started by Gecko-EC, 02-17-2024, 03:41 PM	7 responses 139 views 0 reactions	Last Post by mcplslg123 02-18-2024, 10:46 PM
Is there a list of known dodgy ATI Radeon chips? by LukeDavis Started by LukeDavis, 02-16-2024, 04:34 PM	4 responses 128 views 0 reactions	Last Post by LukeDavis 02-18-2024, 06:33 PM
Dell XPS M2010 with Black screen, looking to retrofit another video card. by LukeDavis Started by LukeDavis, 02-14-2024, 10:33 AM	3 responses 375 views 0 reactions	Last Post by LukeDavis 02-18-2024, 05:42 PM
Missing RSMRST Signal DA0ZA3MB6E0 by mnciks11 Started by mnciks11, 11-10-2019, 12:15 AM	8 responses 7,120 views 0 reactions	Last Post by dorgeles12 02-18-2024, 04:38 PM
Lenovo Legion 5 Pro 16ACH6H bad crystal?, but now wont program. connection lost after 5 seconds by ktmmotocross Started by ktmmotocross, 01-22-2024, 05:33 AM	2 responses 302 views 0 reactions	Last Post by ktmmotocross 02-18-2024, 12:50 PM

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