How read information in fastboot mode from HTC phones

Download Necessary Tools

1. HTC Drivers
2. Drivers and Adb with Fastboot tools

Installing Neccessary Tools

1. First install HTC Drivers
2. Next install Adb mini with fastboot tools setup to get all necesary drivers(adb) and tools.

• Windows 10 users should additionaly go to c:\Windows\inf  and search file "wpdmtp.inf" press right button on it and  select INSTALL

Read All Information from Phone In Fastboot Mode

1. Turn phone in fastboot mode.
2. Open Command Prompt from start menu with admin right(if windows ask about rights just press YES)
3. If you not change default directory ADB and FASTBOOT files are in C:\ADB
4. You need to go to this directory by command:

•  Type cd\ and press enter button.
•  Type cd adb and press enter button.

Next use fastboot command:
1. fastboot devices
and press enter key
This command check communication with phone and sure that all drivers are installed correcly.
2. fastboot getvar all
and press enter key
This command force phone to give us all information about firmware version, bootloader status, cid number, phone model id and all other data that phone can give us.

(bootloader) version: 0.5
(bootloader) version-bootloader: 3.19.0.0000
Bootloader Version

(bootloader) version-baseband: 3.0.U205561.60412G
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main: 1.00.401.4
Phone Software Version 

(bootloader) version-misc: PVT SHIP S-ON
(bootloader) serialno: HT668BW03304
Phone serial number

(bootloader) imei: 357488077111112
Phone IMEI number

(bootloader) imei2: Not Support
(bootloader) meid: 00000000000000
(bootloader) product: a56_uhl
Phone model id needed when search firmware

(bootloader) platform: hTCBmsm8226
Phone chipset on mainboard

(bootloader) modelid: 2PUK20000
Model id from Label

(bootloader) cidnum: HTC__034
CID number needed when searching firmware for phone

(bootloader) battery-status: good
Battery status

(bootloader) battery-voltage: 0mV
(bootloader) partition-layout: Generic
(bootloader) security: on
Bootloader security level

(bootloader) build-mode: SHIP
(bootloader) boot-mode: FASTBOOT
(bootloader) commitno-bootloader: 2d0013a9
(bootloader) hbootpreupdate: 11
(bootloader) gencheckpt: 0

That all. We got all neccessary information.

Other Usefull Fastboot Command in HTC phones:
1. fastboot reboot
This command is used to reboot phone from fastboot mode to normal use.