3GB/32GB mainboard troubleshooting advice

[ivanB1975]

In case it wasn't clear, the 'newest JumpDrive' part is important - the older versions don't support the 3G board and won't boot, which has caught some people out.

I am using the latest JumpDrive Version I can find (JumpDrive 0.6 released this 4 days ago).
I am burning to a 32 GB micro SD Card on Windows using Etcher.

I reinstalled the original motherboard and found I did have an issue with the JumpDrive SD Card.
I re-flashed the JumpDrive put the battery in on the old motherboard and everything worked as expected.  LEDs flashed and the JumpDrive Screen came on (I did not actually hook up the usb to the computer)

I then reinstalled the new 3/32 GB board, put the validated JumpDrive SD Card in, installed the battery turned on the system and nothing.  No LEDS, no screen, nothing.

I was now convinced that I had a bad motherboard.  I fiddled around for a while with connections etc still nothing.  Just for the heck of it I plugged in the USB connection to the computer and all of a sudden it came to life.  LEDS, Jumpscreen etc.  I just worked.  

I was able to flash the disk.  I unplugged the phone from the computer and it still had the jumpdrive screen.  I removed the battery and reinstalled it with the jumpdrive disk still in and it did nothing.  Again I plugged in the usb and it came to life.  I could then unplug the phone and it would still run.

What I believe is happening is that my battery was low.  It was more than enough for the old mother board to boot, but I believe the new one at startup requires more charge.

While I had plugged it into the usb previously, at that time my JumpDrive disk was bad so still no LEDs, screen or anything.


For others, make sure you get the latest jump drive and test it on the original motherboard before you do the swap, make sure your battery is fully charged and if you still don't see anything try to plug it into the usb with the known good jumpdrive image.

Thanks for everyone's help on this.

I had exactly the same problem. Solved with this