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Thank you 2informaticos. I tried it again and all is working, looks like it was the battery I am very grateful for all your help

New battery in, still not charging Q7055 1 8.3 2 8.3 3 8.3 4 0 5 8.3

Dent in the bottom left corner on the screen tells me that it was dropped. No history otherwise Ok, I will source a new battery and see how it goes

Yes, installed os on a new ssd, have not tried a new sata cable but I cant see that this would do it Once it gets going it will work forever, shutting down, restarting etc all works. Only when i leave it off for a couple of hours it goes back to this cutting off I can boot into recovery with no...

Q7055 1 - 8.7v 2 - 8.7v 3 - 8.7v 4 - 8.7v 5 - 7.03v

Hi Strange one. Works perfectly when booting to recovery or usb stick, but cots the power on normal boot, the moment a first bit of the progress bar gets filled. Did smc, vram reset, new os instalation - it seems to work then. But after cooling off (next day ie) it happens again. Checked the...

Thanks 2informaticos F7040 6.99v on both ends 3V3_G3H is 3.3v - checked in 3 different points

Hi, Unit works while plugged in only. Showing 0%, battery just under 500 cycles. Is there some common issue with those, or just dodgy battery? Thanks

Ok, reflown the driver and the backlight is on! Thank you for all the help

I am too ignorant to understand what is the source of this issue. My uneducated guess would be the backlight driver(?) Can change it again Please assist

Yeah, the ones I did last Sunday, I thought you were asking about voltages now sorry I just checked other BLK_isense in diode mode and they are 0.614 but this one is 0

15 - 0v but no short to ground - I measure this on R7719

Hi, thanks for the message XW7720, all in order continuity present from pin 5 of U7701 and to D7701 U7701 voltages 3 - 2.84 V 4 - 2.57 V 11 - 5.12 V 14 - 3.34 V Cheers

Hi again, Replaced the U7701 as well as F7700, also changed D7701 as it was showing same voltage on both ends now - still no backlight U7701 readings 1 - GND 0 2 - GND 0 3 - 2.865 4 - 0.559 5 - 0.636 6 - 0.427 7 - 0.427 8 - 2.952 9 - 0 10 - 0 11 - 0.461 12 - 2.655 13 - 0...

Cheers. I am such a dummy. I dont do it often enough to remember :/

ok U7701 Pins 1 0.002 2 0.002 3 0.564 4 0.0 5 started burning - most likely I put the wrong probe on but cant say as I dropped it disconnected from power and rechecked the f7700, will have to replace it again Pin 4 is now in -1.8 Just thinking - was my mistake measuring it while powered on?

2informaticos my bad, I was thinking about the boardview new f7700 in place D7701 8.5v on both sides Is that the led driver then?

JohnB8812 F7700 was fine but I accidentally killed it after taking the measurement 2informaticos PIN 2 according to the schematics, the other pin was 0v

That was the case. I have learned something today :) No short now R7788 - 300koms R7789 - 146 kOms Looking fine Will replace f7700 and investigate further

ok continuity between D7701 and A5 ball of U7701 (all voltages taken with screen connected, psu connected, no battery) D7701 8.51V Q7706 voltages 1 - 0.02v 2 - 0.02v 3 - 2.8v 4 - 8.5v 5 - 8.5v 6 - 8.5v F7700 was ok but I shorted it while measuring voltage ( touched both the shield and...