Use the ADB command to fl boot. IMG and recovery. IMG.

HTC's current system structure is independent and associated with several storage partitions.

A complete official Rom is unlocked as follows:
Boot. img
System. img
Recovery. img
Hboot. nb0
Data. img
Cache. img
Radio. img
And so on...
We are talking about fl, that is, the boot. IMG boot partition and the system. IMG system partition,
So many of you are stuck on the first screen, white screen. Or the recovery cannot be accessed (sometimes the system file is incomplete, and the recovery is not usually written to a third-party recovery)
This is because the boot system kernel (BOOT partition) does not match the system, resulting in incorrect boot.
Now that you know the problem, there are several solutions.
First, manually fl the boot. Or recovery.
Run the fastboot command.
First, you must have fastboot support, which is included in official refresh packages. I will extract it to you.
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In the decompress operation, cmd.exe is extracted directly from the system. Not always. If it cannot run
Click Start-run-cmd to enter the folder. Run the fastboot command
There are two methods for the mobile phone to enter fastboot mode. If your mobile phone can be identified by ADB, it can be recognized even if it is stuck on the first screen.
You can run ADB devices first
Run the ADB command to access fastboot.
Run ADB reboot bootloader.
In this way, the mobile phone enters the fastboot USB mode. If the computer driver is not installed, it will not be recognized here.

The second method is to completely disconnect the phone, and press and hold down the volume and press the power button. Go to hboot and click the power button.
Next, we will click boot and recovery.
Extract recovery. IMG and boot. IMG to the downloaded folder.

Return to cmd. Run the command.
Command: fastboot Flash boot. img
Recovery remg. IMG command: fastboot flash recovery remg. img

As with the firmware updated some time ago, many people cannot enable WiFi, but the boot. IMG can be used to solve the problem.