[HTC Pico (Explorer)] Rishik999:
If you've dealt with recovery software on your computer any, you probably already have a good idea of how this works and what it's all about. Out of the box, your phone comes with stock recovery software. It varies depending on the manufacturer, but all stock recoveries are essentially the same. They allow you to manually flash official updates and allow you to clear the cache on your phone. What they can do is very limited and in reality, not all that helpful.

Thanks to the genius Android developers out there, we have custom recoveries that replace the limited, unhelpful ones. These third-party, or aftermarket, recoveries add all sorts of functionality to the recovery software on your phone.

Types of recoveries available for pico:

TWRP TeamWin Recovery

ClockWorkMod Recovery 6.0.2.8

Explanation for all the recovery terms:

Reboot System:

It will reboot the device normally,you will boot into current ROM.

Apply Update from SD card:

Usually this option is used when,you got a official signed update,than u can flash it using this option.The update file must be named as "update.zip".It should be placed under the root of ur SD card i.e not under any folder,direct paste

Wipe Data/Factory Reset:

Factory resets your device,this will wipe off the /data partition.The /system & /sdcard partition won't be affected.It is always recommended to wipe data when you are flashing a custom rom. After yor factory reset,you will see startup wizards,which helps you to get started.

Wipe Cache Partition:

Wipes the cache partiton on your device.Cache files are those files which are stored by applications to speed up your phone(to loads games a bit faster) & to perform somewhat faster.You can clear up the cache to make your internal memory look better.

Install Zip from SD card:

This option allows you to flash any zip from your SD card.After you select this option,you will find a few more options,they are

-->Apply update.zip

It works same like apply update from sd card.

-->Choose zip from SD card

You can select the .zip file whichever you wanna flash.

-->Toggle Signature Verification

Ah,I too certainly dont know,what exactly it does.Well,recommended to keep it disabled(default=disabled)

-->Toggle Scripts asserts

Better leave it,if you don't know about recovery's search editfy scripts(same as I do :silly:)

Backup & restore:

Ah,Again you gonna get 3 more sub-options

-->Backup

If you have something heard about "nandroid" ,than its nothing but a system backup,known as nandroid!This will backup every single file present in your internal & external partition of your memory card(ext partition).The backup folder is stored on your sd card,path /sdcard/clockworkmod/backups.Recommended you copy the folder on your PC through USB~

If you wanna take nandroid,I have made a video over it here

-->Restore

Selecting the option will restore your backup uped ROM,the same as u backed it up!You,need to factory rest once before restoring the backup.

It is helpful when you are stucked on bootloops or soft bricked!

-->Advance Restore:

This is kinda for experts.It ask you to restore only the partition you want to.Suppose,youhave flashed a kernel,which aint booting up your device now ,you can restore /boot partition from your back uped ROM. And,enjoy booting it instead of reflashing the whole damn ROM.

Mounts & Storage

This option enabled you to mount/unmount any partition on your device.You can every format the partion(P.S one by one).The last option "Mount USB storage" allow you to transfer files from SD card to PC or a vice-versa.

Advance:

The most used option ! Gives you a few sub-options.

-->Reboot Recovery:

The phone will just reboot into recovery mode.Ah,this option is helpful,when the recovery doesn't do certain tasks,example,while u mount the data partition,it may happen that u wont able to unmount it again,so just reboot recovery,may help you at times(my personal experience)

-->Wipe Dalvik Cache:

Wipes the Dalvik Cache from your device,one deleted,it gets re-created,when u reboot your device,so booting it will take a more longer time than that of usual!So,don't panic!

-->Wipe Battery Stats:

Formats the file called batterystats.bin.In sort of calibrated your battery!Mainly done when you flash a new ROM!

-->Report Error:

Reports the error to the recovery team.

-->Key Test:

It tells you the number that has been allocated to any key on your phone.This is mainly used when u want to remap your hardware buttons,or just to check wetherthe system is registering the press of the button.Press the back button to exit the test.

-->Partition your SD card:

Creates second partition into your sd card.while one used for storing up the mediafiles,second partition can be used for increasing the RAM & internal memory.During this process it will ask you,how much space you are willing to give or internal memory that is ext size & RAM that is SWAP,SWAP works only if ROM supports it.

Note:The process formats everything on the sd card !

-->Fix Permission

It will fix permission gone wrong in internal stroage.It will fix some FC's(Force Closes) on the system apps or the the apps you converted into system apps but forgot to change the permissions!

Power off:

It will power off your mobile.