what is the best format

[AymanLinux]

what is the best format  for z2,  insted of factory rest 

format like you format your computer 

[Phy]

Repair the phone with Sony PC Companion.

Sony PC Companion.
http://support.sonymobile.com/us/tools/pc-companion/

[Uliwooly]

you could use Myxperia or android device manager to reset your device, as long as

Wifi or data it's on
Gps on
Myxperia enabled
Your Gmail account it's on your phone
The phone it's on

[AymanLinux]

i need to delete everything on my z2

i used to format my LG from recovery

any method to format z2 from recovery not factory reset

[Uliwooly]

@AymanLinux

There's no recovery on Xperias. You need a PC or a Mac or as I'd suggested MyXperia or Android Device Manager.

[AymanLinux]

Android Device Manager is used to locate stolen device, not for format

[Uliwooly]

@AymanLinux

Have you ever used myxperia and/or android device manager? 

you have an option to lock it or erase your phone.

[AymanLinux]

 no i dont want  format my phone by using any app's

[Uliwooly · Accepted solution]

@AymanLinux

Those are your options

1. PCC or Bridge as suggested by @Phy

or

2. using MyXperia/Android device manager to delete everything on your phone.