Комментарии:
"this is above my skill", there is no such thing with Sorin. wow!
ОтветитьMaybe he sent the laptop with a different ssd for testing, and the other ssd with whatever it was important to him, kept it. Probably has Delphi or Autocom software tied to that laptop.
ОтветитьThe chip U39 is a dual chip U39A and U39B is the same chip U39.
ОтветитьCustomer saved the laptop vecause it is an i7, not an i3. Still nowadays X230F with i7 can be sold more expensive than i3 ones... Or maybe he wanted to have a top-spec one...
ОтветитьSir please teach us laptop repairing
ОтветитьVery good repair video
ОтветитьHmm' iron the pin's then re-flow with air after' never seen that before
ОтветитьDear Mr Sorin, do you ever use solder paste for the biggy chips.
ОтветитьPlease advise the customer about having the laptop connected to his car while turning the key....Scary pizza
Ответитьcan you get that chip for the spare one to work ?
Ответитьcould have been caused by the car sending a hv spike but what about cranking the car causing a drop in incoming voltage to below the level of the laptop battery... laptop battery 11v, car cranking can drop to 9, 2v difference 'the wrong way'...laptop battery tries to power the car....low voltage difference but could be a heavy current and flowing in a direction not expected.
A similar issue existed 6-7 years ago with mac books and cheap powered usb hubs, if the mac was turned off, and the cheap hub 'back' supplied 5v into the mac usb port, 5v on a 5v pin sounds ok but the 5v incoming from the port would try to power the mb and fry the current limiting chip on the mb because the current is reversed, something it should never see in normal use.
I thought it would be too old for chip ID and programmed chips, or at least have universal code for all models.
I have a Arduino EFI called Speeduino and I was adjusting the fuel table when I noticed the laptop battery dying. I plugged the car charger in and the EFI grounded through the USB. The laptop was ok, but it blew the EFI.
You should fix more laptops like this.... great desighn great bygone era of machine... Old is Gold.
ОтветитьDoes Sorin have fluxophobia?
ОтветитьGreat job bro. Lenovo professional series products are awesome. You can drop those (not tablets..) on concrete by accident and they don’t break. For instance the Lenovo t400 series - built like a brick house
ОтветитьThose are great little laptops. Only thing that I’ve seen in the past w those style touch screens is weird ghost keyboard clicks etc from a malfunctioning touch digitizer response integrated display. So it may be worth the effort to look into that, not limited to laptops with touchscreens but also the AIO computers w touchscreen.
Ответитьwe fixed it -- no, I didn't do nothing
ОтветитьNice repair :)
On this type of model (old Lenovo) the serial and other information as well as the password are marked in an eeprom called 24RF08
(U42 on X230).
Always on top Sorin, once again an excellent video.
Thank you :)
Great repair bud and thanks for sharing your knowledge
ОтветитьCongratulations from Vietnam.
ОтветитьThe dodgiest job so far
ОтветитьFrom the years when the computers had engineering at different level. Not consumer grade stuff.
ОтветитьWell done Sorin! One of the your best videos. In the top 3 !
ОтветитьOnce again, great video but once again I disagree, those old (IBM) Lenovos were built really well. Structurally a solid machine and very resistant to liquid damage. I've still got an old T410 kicking around in the boot of my car. I use it for site work, networking etc. It's been dropped many times, rained on, covered in building dust and it still works. Amazing engineering. I think the new ones are worse. From a repairers point of view they're just harder to take apart.
ОтветитьHello Sorin, thanks for the video, some Software can work with some Laptops also when you reinstall the operating system, that means he maybe has a software that only works on this specific laptop with a specific serial number, he just needs to install the software again and activate it.
ОтветитьDe ce nu folosesti flux Amtech sau similar? Colofoniul nu mi s-a parut niciodata eficient la lipituri atat de fine.
ОтветитьWhat about the resistors?
Ответитьcustomer have emotional love with that laptop.
ОтветитьWow. I was 100% sure that it won’t work. Great job for sure
ОтветитьEven an older i7 is better then an i3. The broken one would be much faster unit. Well in older laptop terms anyway. Great video.
ОтветитьNot another NOLOVO!!! Performed warranty repairs for over 20 years on multiple major brand laptops. Guess which brand had the worst misdiagnosis by brand support and the most failed replacement parts out of the 3 major non Mac brands. I would guess in this particular case that the end user may want to get his alternator in his car checked. Sounds like he received a surge from vehicle electrical system. I remember when some of those models supposedly had gorilla glass but mysteriously gorilla glass was not available but other companies were getting gorilla glass. Lol.
ОтветитьTB62D515FG is cheap. Second notebook can be repaired also.
ОтветитьNot fair. You get schematic and board view. Whenever I look I get nothing. You are one lucky mechanic Mr Sorin.
ОтветитьGood job mate 👏
ОтветитьSo it's a pmic and not an ec chip that's why it has the battery voltage that explains it nice work
ОтветитьThis was a nice, interesting repair!
ОтветитьI have this same lapop! It's great. Very interesting repair. Thinkpads #1.
ОтветитьThankssssssssss❤
ОтветитьA proper "blind" repair... 😅
ОтветитьThank you for all of the work you are doing to provide this instruction. I just found your channel and started watching this video to see what your teaching style is before I decide to take a course.
I will have to get back to this video tomorrow, but so far I am liking what I am seeing, seems to be very good material.
I have an msi laptop that doesn't turn on, I opened it and it has a component that heats up to 80°c when I press the power button, it is not the processor that heats up its a components with a code 1255C, Im not a technician but I think thats the problem, what do you think?
ОтветитьWow! Like you I had 0 confidence
ОтветитьI discovered you 3 days ago and even though I don’t understand electronics or a darn thing you’re saying, I can’t stop watching your videos!
Any chance you have a video on how to read a schematic?
How do you find schematics like these or other laptops?
ОтветитьU39 IS U39A U39B U39C U39D ECT ECT .
SOME TIME THEY ARE WRITTEN IN SCHIMATIC THIS WAY
Power IC
Ответитьin the beginning there was 1 broken and 1 working laptop, in the end there is 1 broken and 1 working laptop 😀
ОтветитьGood job done Sorin 😀
ОтветитьThose old ThinkPads are the best
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