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WITH U1900 LIFTED SAME VALUE IN DIODE MODE = 0.000V NOW WHAT SHOULD I GO/DO/SEARCH TO FIX THIS BOARD?

C1910 is good I even lifted it Also lifted all of them C0890-92. None of them!

Diode mode = 0.000v Looks like its in short No corrosion around U1900 I lifted it for a while and resolder back and still the same value on diode mode

3V3_SUS = 0.038v PM_BATLOW_L = 0.125v SMC_ADAPTER_EN = 0.061 PCH_DSWVRMEN = 0.020v PM_DSW_PWRGD = 3.22 PM_RSMRST_L = 0v SMC_ONOFF_L = 3.40v PPVRTC_G3H = 0.073V Anything else?

Customer told he brought to another store to replace trackpad and not its not turning on anymore The board doesnt look like any component was replaced. To be honest it looked untouched But I saw some small balls around the U6100 PPBUS = 8.58v PP3V42_G3H = 3.39v PP5V_S5 = 5V PP5V_S4RS3 = 0v...

DFU restored solved it! Thank you so much!!

The machine works perfectly until it goes for sleep for 5-10 minutes then when I wake the screen appears and KB/TP do not work at all, BUT If I plug a USB mouse the USB mouse works normal while the KB/TP still not working. Should I go for DFU restore? Should I do the DFU restore with any flex...

KB/TP worked for short time after coming back from sleep even before disconnecting JR850? Yes If you click for the machine to sleep and instantly use the KB/TP it will work BUT If you wait for 5-10 min it will not work anymore

And then what is next to do with the goal in mind to fix this board??

"Tried with JR850 disconnected and if it sleep and goes back work but if it sleep and I left it for a while without usage keyboard and trackpad will not work" Is this still valid? This is not valid I only mentioned cause right after sleep it works but if you let the machine sleep for 5-10...

Using the charger machine turned on With both RIO and JR850 disconnected However SAME You close the lid wait for some minutes and keyboard and trackpad does not work

Actually I think I am disconnecting the right connector The big one on the small board WITH the battery disconnected But openning the LID and pressing power DOES NOT make the machine turn on AT ALL

By the way The one I told you With it disconnected the machine will not turn on I guess it has communication with the board to power up I am sure I am thinking about wrong one Which one is the RIO connector?

OK Will do it. But can you guide me on which one is exactly the RIO connector? Is the old I mentioned above?

Tried with JR850 disconnected and if it sleep and goes back work but if it sleep and I left it for a while without usage keyboard and trackpad will not work I am not sure if I did the right thing with this RIO flex but with it turned on and already frozen I unplugged the big flex on that small...

MBA A2337 If you turn it on it works perfectly. However if you close the lid and open again keyboard and trackpad do not work anymore you need to RESTART machine for it to work again. If you plug a USB mouse it will work even if the trackpad is NOT WORKING Any ideas about this issue?

I am using USB-C cable to connect both Mac The mac with defect is on the target mode screen (I turned on pressing T) It's showing the thunderbolt and usb icon However on my Mac There is nothing on network folder nothing on the disk utility also IMAGE ATTACHED!!

And PLEASE.... PLEASE GIVE me full answer!!

This looks like wasted time? What do you mean by this? This mac is a NO SOLUTION case? From what I read target disk mode is to use the mac as an external hard drive... The data on this mac is not of interest from the customer. Customer want the machine working to use it. All of the data were...

After ALL of this time and procedures I did DFU restore with the BRAND new BIOS flashed with the DUMP you gave me And we are back to the same behavior The only thing I think is different is that now I can click on internet recovery mode and it starts to load but then it crashs and its in a...