T-Mobile pushed out the Android 4.3 update for its HTC One just two days ago, but some users have had problems updating. While this story sounds like it would have an unhappy ending with some users left stranded using an older version of Jelly Bean, HTC has come out with an alternative means of saving the day. Today the company posted a full 1.12 GB RUU that T-Mobile customers can download and flash manually.

To avoid the hassle of visiting HTC's site, here's a direct download. The processing for performing the manual update is more complex than an OTA, but it's still pretty straightforward.

Manual system update instructions: If you are outside of T-Mobile/Wi-Fi coverage, or the update is not found, you may perform a manual system update. This process requires that you download and install HTC Sync Manager first in order to get the proper drivers. If you do not have HTC Sync Manager installed already, you may download the software from http://www.htc.com/www/software/htc-sync-manager/ . WARNING: Performing the system update manually will delete all information from the device. Ensure all information is backed up before proceeding. See the Help & How To section of this website for more information on backing up your device contents. Performing the ROM Update: Download and save the HTC One™ for T-Mobile ROM update to your PC. Connect your device to your PC via the supplied USB cable. If the device is not recognized by the PC, ensure you have HTC Sync Manager installed and then disconnect and reconnect the device from the USB cable. Once the device is properly recognized on the PC, locate the HTC One™ for T-Mobile ROM Update that you downloaded. Double-click on the file to launch the system update wizard. Follow all of the system update wizard instructions shown on your PC. Once the update is complete, click Finish in the Wizard and the device will reboot. Once the device reboots, the initial setup wizard will appear. Once the initial setup process is complete, the device is ready for use.

This file is also what T-Mobile customers who have rooted and otherwise tinkered with their handsets will want to flash in order to return their devices to stock. Once done, the device should look precisely as it did when it came home from the store, minus the new phone smell. Oh, and those bumps from when the phone bounced off the kitchen table? Those will still be there too.

Source: HTC