Bv9500 Pro Loose all data every time it restarts. Will not update with ota. Will not Flash with all the tools you have graciously provided on this site. At a loss. Randomly crashes and restarts like in a boot loop.  Will not factory reset. Will not update from the ota on SD card. Will not do any thing and I follow instructions to the letter. Hate to shelf a great phone with the best reception. It got corrupted on last update in December of 2019. Really bad now with it wiping data! I need someone in the states to fix it or a solution. $230 shipping to send it back to china is too steep for repair and reprogramming. Anything will help. Remember I have followed all of the instructions you graciously provided and used all the tool you have given us. I only ask for help when I hit a dead end. In developer options the OEM unlock will not working. Looked at that for the Sp Flash may not be working because of that.