Originally Posted by
jesusfreak420 Hey Harrie-S,
Thanks for the tip. How do I test the SD card to see if it's faulty? It seems to work fine on my Surface Pro 3. I have formatted it a few times both on the phone and on the Surface - would that fix any possible errors? I was under the impression that this was a common issue for the Lumia 1520.
Thanks.
Formatting should fix a problem with the SD card or use the Surface to check for non repairable errors. The best prove is to get the SD card out and see if you still get random reboots. It's bye the way also could be the SD card "holder" is "faulty. And the same you can do with your SIM, get it out and if you still have random reboots it's not the SIM.
But random reboots can have many root causes and you have to eliminate them one by one and hope that you find the root cause.
Hope you fond the problem.