Here are some common issues that may arise during the process, along with their solutions:
Boot your phone into Download Mode (Power + Volume Down). Step 4: In fastboot, type: fastboot oem rebootRUU (then fastboot flash zip rom.zip – repeat twice if needed). Htc Ruu Flash Tool Download
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HTC used to host RUU files directly on their website ( htc.com ). Today, most official links have been migrated or removed due to HTC's shrinking mobile division. However, you can still find legitimate RUUs via: Here are some common issues that may arise
No download needed. Boot into download mode and use fastboot flash zip ruu.zip . This is the same as running an RUU but manually. Htc Ruu Flash Tool Download