After replacing sr pro 4 LCD,won't turn on battery mode unless plug it
After replacing the surface pro 4 LCD, it won't turn on the battery mode unless i plug it with the charger
After i had replaced a surface pro 4 LCD, won't turn on battery mode unless plug it.
Before taking off the broken screen the pro was working good just the screen was broken, so i turned it off then started working on it. after taking off the old broken screen. i tried to connect the new LCD on to test it but no response at all.
it does only work when i plug it in the charger and it does show me that the battery is 100% full on the screen?
also i did put a piece of paper between the connects part for the battery and the motherboard. it does show me an X on the battery icon on the screen when i turn it on
but i couldn't resolve the problem for 1 week now and i have been searching online but no one has had these issues before.
so how can ifixit ??
Is dit een goede vraag?
If you unplug it when its on, does it die instantly?
yes it dies like there is no battery ,,
door Mike ali
Same issue. Putting piece of paper between battery and motherboard reports no battery, to one side reports battery capacity as -1 but centered all correct info is displayed in the battery report but as soon as I unplug it, it just cuts out.
door Robin Wilson
has anyone solved this issue? i just replaced the battery and screen in the SP4 and the system boots up fine (even shows charging) but as soon as i pull the plug... its dead
door Steven Washere
Yes I fixed mine. There are two little diodes on the motherboard under a silver plate (pictured in the most helpful answer).
I measured the resistance of both (with power disconnected) and one resistor showed 1 (which is the default reading) and the other read 230. I guessed that the faulty one must be the one with no resistance (reading 1) so replaced this and it resolved the problem.
It was rather fiddly to solder though but just used the soldering iron and some old solder from the garage so it may have been easier with something more specialised and finer.
As the replaced diode did not lie as flat I stuck a piece of electric tape on the underside of the silver metal cover to ensure it would not make contact.
After re-assembly, the device switched to battery again when unplugged.
Removing the screen, I damaged the WiFi/Bluetooth antenna (as it is glued to the back of it) but used tin foil to replace this and it worked at least as well as it did before and actually think the signal was slightly stronger
door Robin Wilson