Lenovo Ideapad V340-17IWL - Heavy like a stone but almost nothing inside. And Why is it bootlooping?

If you like my videos i'd happy if you leave a like, a comment or even subcribe to my channel. Thank you and have fun watching!
---------------------------------------
Social Media:
---------------------------------------
KZbin: @fairrepair2022
Instagram: fairrepair2022
facebook: profile.php?...
---------------------------------------
Recommended repair communities:
---------------------------------------
SIERA: / discord
IT Jungle: invite.itjungle.eu/
Badcaps Forums: www.badcaps.net/forum/member....
---------------------------------------
Tools:
---------------------------------------
Microscope: Eakins 1080P 48MP 180x with big stand and 0.5x Barlow lense
(I recommend lower magnification for increasing working distance) amzn.to/3ScR8Hi (Affiliate-Link*)
Hot-Air Station: ATTEN ST-862D 1000W - amzn.to/3Ukx60g (Affiliate-Link*)
Soldering Station: KSGER T12 75W - amzn.to/3HGpFZW (Affiliate-Link*)
Multimeter: OWON XDM1241 - amzn.to/3O0Fo9K (Affiliate-Link*)
Bench Top PSU: Rockseed RS310P 10A - equivalent: amzn.to/3P0BcXj (Affiliate-Link*)
Thermal Camera: Infiray P2 Pro 256x192 - amzn.to/3qYOT0L (Affiliate-Link*)
iFixit Pro Tech Tool Set - amzn.to/44LfNXM (Affiliate-Link*)
USB-C Meter: Makerfire FNC88 - amzn.to/44IT0vV (Affiliate-Link*)
Preheater: Gordak 853 650W - equivalent: amzn.to/49dmi8l (Affiliate-Link*)
Oscilloscope: Hantek DSO5102P 2Ch 100Mhz - equivalent: amzn.to/3w1aXu4 (Affiliate-Link*)
Multimeter Probes: BST-050-JP - equivalent: amzn.to/3OksZxG (Affiliate-Link*)
Flux: Genuine Amtech NC-559-V3 - amzn.to/3vQ7WfO (Affiliate-Link*)
UV Soldering Mask - amzn.to/3r5XsXS (Affiliate-Link*)
UV curing lamp - equivalent: amzn.to/42iSS6w (Affiliate-Link*)
---------------------------------------
Recording equipment:
---------------------------------------
Camera Top Bench and Microscope area: Logitech BRIO 4K - amzn.to/3Sh94kl (Affiliate-Link*)
Camera Face: Microsoft Modern Webcam - amzn.to/3r5oDBR (Affiliate-Link*)
Microphone: MOVO WMX-1 - amzn.to/45E8YbJ (Affiliate-Link*)
Software: OBS Studio (recording) & DaVinci Resolve + Microsoft Paint.net (Editing) - FREE
*Als Amazon-Partner verdiene ich an qualifizierten Verkäufen.

[@stevedebeukelaer1424]

Nice one pure bios fault for an change. Good work Mike

[@teslasapple]

Smooth diagnostic 👍 Thanks for sharing

[@BrozFix]

Excelent repair now you give me hope for some repair I have. Thank you for sharing your knowledge.

[@Abdallah.795]

Appreciated ❤❤❤

[@hosamajram1164]

Sir It has been long time and we are waitting for your videos .❤❤❤❤❤❤

[@fairrepair_en]

I'm sorry that you have to wait so long this time. There were a few acquaintances and some unforeseen difficulties that slowed down my uploads. Stay patient, it will continue soon. :)

[@hosamajram1164]

i will wait master @@fairrepair_en

[@GlishaSo]

Good job brotha! :)

[@hosamajram1164]

Bien fait 🎉🎉🎉🎉🎉🎉🎉

[@g0suboy]

Nice to know how to rule out if its the bios issue. Keep up the good work! ❤

[@fairrepair_en]

Thank you again my friend! If you receive a case where I could help you, don't mind to contact me. 👍

[@edmundmergl6155]

The actual repair has been done on the BIOS. Would be interesting to know, what exactly has been done with the BIOS, just CleanME or more?

[@fairrepair_en]

If i understand correctly, it was rebuilt from an official update file. The other two guys can explain better. :)

[@supercomputing942]

windows 10 doing bios updates along with its normal win10 feature updates is my theory on this problem. no windows, no problem.

[@lordmmx1303]

of course it's a bios issue. lenovo always boot loops or flashes caps lock and boot loops when bios update failed.

[@vander-from-zaun]

at least it is not a nasty hidden short between drain and gate for low side ram mosfet lol btw you and i worked on it some time ago and thank you for help

[@vander-from-zaun]

it was doing the same like this one on battery and on the power just stay on

[@andrejr841]

Hello, thanks a lot for your interesting videos! I'm asking me why you need the serial number etc in the new BIOS again? It would be much easier to just download the latest BIOS from the company webside and flash it to the chip. I did that many times with the CH341a device for normal ATX mainboards and it was never an issue. Is it different for notebook mainboards?

[@fairrepair_en]

Well, it is basically just the "extra mile" to restore this system with it original S/N, Windows license and everything else unique, nothing more. I do agree that it will basically work without all this extra stuff done on most of the cases, too

[@ohmware2020]

hello mike, have a nice day! what flux are you using? seems like the ink in the description is nt found. ty

[@fairrepair_en]

It is Genuine Amtech NC-559-V3 and linked in the video description. :)

[@Nestar211]

Do these lenovos no longer have USB bios recovery methods? Most machines I've come across have at least some method in the documentation for doing so. Generally a specifically formatted USB key (Fat32, or exFAT) with the bios file renamed and placed right on the root of the drive, and then holding a certain combination of keys. Grabbing the latest from the website and doing that seems much easier than un-soldering the chip and reading it/rebuilding manually.

[@fairrepair_en]

I don't know to be honest. For me, it is faster to remove and reprogram than to do complex research for.. minutes... hours? I don't know. But thanks for the hint. Regards

[@Nestar211]

Makes sense. For the ones I've done, usually about a 10-15 minute procedure by the time I've found the instructions and downloaded the new bios. That does of course require that the board be fully functional otherwise. The post code you were getting with the LED on the board also likely indicates the same thing. The fact that it was functioning enough to display that is a good sign that USB recovery methods would work. As long as there's no malfunction in the memory itself.

[@luisst7259]

Hi great video! I unfortunatley have that same computer and same problem, I have problems downloading the bios bin file, is there any chance I can buy the file from you so I can fix mine ? greetings from Denmark

[@fairrepair_en]

When you contact me via DM in Discord, I will send you the file. Best regards.

[@kgerakopoulos]

The problem with laptop companies is that they do not take advantage the empty space for bigger batteries... only Apple does that

[@dexasdexas3784]

Honestly id question if apple has much of a bigger battery when it comes to actual energy storage, Wh.. Also, there is a limit how far you can go, if i recall correctly its 99Wh, anything above that and you cannot bring the device in planes and so, so manufacturers tend to be below that

[@thegreathitsstation]

The design of this laptop is risiculous,so much free space inside and they used a small battery

[@rudolfra7736]

27 minutes video with common bios reflashing...OMG

[@fairrepair_en]

I am sorry to disappoint your expectations. In my opinion, the diagnostic steps until the point to flash the BIOS are important, especially if it turns out not being a BIOS issue. I have released a few dozend videos with other faults. Some were complicated to diagnose, and some were hard to solve. Maybe you'll like them more. Best regards