T21p-e2.bin

The actual firmware image that will overwrite the corrupt internal memory. Step-by-Step Guide to Using TFTP Recovery Mode

Ensure the phone and the provisioning computer are on a stable power source (preferably an Uninterruptible Power Supply/UPS). A power cut during a binary flash destroys the bootloader. t21p-e2.bin

, click on Browse/Choose File , select your downloaded t21p-e2.bin file, and select Upgrade . The actual firmware image that will overwrite the

phone, you must create a local network environment that allows the device to locate the resource files immediately upon booting. Step 1: Prepare Your Recovery Files Overview Getting Started - Yealink Support click on Browse/Choose File