UMTS/HSPA switching bug
I seem to have an issue which i have encountered in other devices forums such as:
A description of the problem goes like this: the mobile network keeps switching between 3G/H/LTE until it finally sort of hangs on one of them with only the upload arrow blinking about once per second. During this "hang", i cannot make or receive calls despite having full signal indication. After a few minutes, the reception indicator goes down to empty, mobile data indicator disappears and after few secs of no reception returns to normal only for the issue to reoccur randomly. I'm getting this from once per day to dozens of times per hour and it's killing my nerves.
I have to mention that rooting or s-off is really off the table right now as, if the problem persists after unlocking i am stuck with a void warranty unstable phone.
Has anyone else encountered this issue?
Device: HTC ONE [M7]
History: Bosch COM509, Ericsson T20e, Sony Ericsson T310, Sony Ericsson T610, Nokia 6600, Nokia 6630, Nokia 7710, Nokia N72, Nokia N95, Nokia N97mini, HTC Desire S, HTC One S