I'm hoping someone can assist me. Urgently.
This evening I downloaded, and attempted to install, the latest Android Oreo update 3.16.401.2 for my HTC10 smartphone.
Everything went smoothly / normally with the download, and with the "Verifying update package", and I got to the "Processing" and finally the "Installing" stage (A black screen with downward arrow above a phone type symbol).
Everything was still going fine and then... at 90% installed - the screen went totally black.
I waited a few minutes, expecting the phone to buzz and restart and then to request my pin number or fingerprint... BUT nothing happened. After a long wait it became apparent it had switched the phone off. I tried the on/off switch - nothing.
[The phone was fully charged prior to the update, which was done via my Wi-Fi. It was still well charged before I lost the battery usage info.]
I now appear to possess an expensive brick! I cannot turn the phone on, and apart from removing the sim card or micro SD card I have no other options.
Any ideas what I can do PLEASE?
I cannot contact HTC (I bought the phone from HTC) and my sim only contract is with Tesco mobile. I couldn't get much sense out of them.