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Wanted an opinion from someone with more experience than I. New replacement battery from Amazon. Didn't buy the cheapest or most expensive. Good reviews. I haven't experienced this problem directly yet - Battery (test 6) Sealed Battery Test is Failing. Battery test 1 Error condition test...

It sounds like a sensor issue to me. I had a unit pass all the ASD tests, but upon further inspection, I checked each sensor reading in ASD one by one and found 2 sensors out of their normal range. I suggest you check each one and make sure none are tricking you.

Double lessons learned! Thanks Duke. Do I mark this one as solved or does an admin?

Thanks Duke! I didn't think about an external USB kb to try out. Worked like a charm, I have light now :) can the USB kb also be used for an SMC reset? I tried, but it didn't work for me.

Hello all, Today I Have a 820-3330 that is giving image, but no backlight Client said they spilled tea on their computer (assuming kb) No liquid damage on board. LVDS connector is good, fuse is good, not sure about cable as I don't have a spare one to try. But SW_0 is 21v, so that wouldn't be...

Duke, I don't need to, but want to educate my self for if/when I need to. I just got my flasher yesterday in the mail and wanted to practice some and understand what would need to be done. Also I don't think it could hurt to grab some bios files off of my doaner boards to start a collection for...

Thank you Alan! Starts pretty much exactly at the 1hr mark :)

Hello all! I hope someone here has a great memory! About 1-2 months ago, I saw one of Louis's videos where he had a bad bios chip on a motherboard. It worked when he heated it up to a point and he grabbed the programing off of it then reprogramed a new one and removed a portion so it could re...

Well, if you do stumble upon it, please keep me in mind! Seems I mixed a couple models up in my stock order last time... A have a nice start though :)

Thank you for the insight and answers Louis! I did really like your video on the charging circuit and that is why I went and checked the current sensing resistors again. I probably burned it while changing out that ISL6259 because I am still learning the techniques. The system passed all the...

Philip, I did happen to find one from a schematics seller for the motherboards, but they were not really linked to what models had what motherboard...

So that's a no to some feedback of those questions? I tried to make the question pretty straightforward - or is this when I should make another forum post? Even if it is related to this repair?

Hello all, I have been trying to accumulate a stock for service needs. I found the list recommending different years and models for doner boards, talked to a manufacturer about common batteries they sell and bought a stock of them, but am now looking into ordering some stock for keyboards and...

Thank Gurmon, I did mention I installed a new battery. I tested 2 new batteries actually, same problem. So, I made a rokie mistake and somehow, after testing the current sensing circuit about 10 times - R7121 was sitting at a comfortable 30.2ohms... No beno, Changed it out again with a brand...

Something I just noticed, In the operating system the battery says 96% "battery is Charged" but i have the orange light still on the charger. I have left the system plugged in and off for about an hr with the new battery and the green light never came on. I just let the battery drop down by 1%...

Hello all, I have loved watching the youtube channel and have had a fun time tinkering my self on some macbooks. To cut to the chase, I have an 820-3437 that came in because it was not charging the battery. After opening up the system, I found some nice sugary mess on the back side of the board...