Tag Archives: Htc One (m8)

How do I Unroot and S-ON an HTC One M8

A friend has an AT&T HTC One (M8) and went down the S-OFF and root path without getting the preliminary backup files needed to go back to stock. Low and behold, there was an issue and he needed to return it for warranty service. Fortunately, this is a fairly straight forward process to do and the steps needed to unroot and S-On the HTC One (M8) back to stock are below. While these are specifically for the AT&T model, the steps are applicable to all HTC One M8 models.

Take your HTC One M8 back to stock with S-ON and a locked bootloader

Take your HTC One M8 back to stock with S-ON and a locked bootloader

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How do I Fix Tethering on the HTC One M8

I’ve been using a T-Mobile SIM card in both an AT&T and Verizon HTC One M8 for the past few weeks on their stock (but rooted) firmware. While both handsets are unlocked for use with GSM carriers, HTC’s implementation of APN and entitlement checks make it problematic at best to use all the features available. For example, MMS does not work on either device, regardless of APN settings, and attempting to tether invokes HTC’s Tethering Guard app to check if tethering is included as part of your data plan. This is fine if you have a tethering plan on the original carrier, but when using another carrier’s SIM card, the check fails. Turns out, the fix is a simple text edit of one of the carrier customization files found in the system folder.

Bypass HTC's Tethering Guard app on carrier branded handsets with this simple edit.

Bypass HTC’s Tethering Guard app on carrier branded handsets with this simple edit.

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