settings app missing after factory reset

[jea]

Can somebody help me because i unrooted my phone and afterwards i did a factory reset..when it rebooted i noticed that my settings app is missing..tried to install the settings.apk but it's giving me an error UNFORTUNATELY, PACKAGE INSTALLER STOPPED. I even tried to boot to recovery but to no avail..please help me please

[Thommo]

Try performing a system repair using PC Companion as this will often fix issues - This will factory reset your phone and erase all data so best to backup before you begin

Switch off your phone and unplug from Pc (Hold volume up and power for around 10 seconds)
Start PC Companion and select Support zone then Update my phone/tablet then in Blue Repair my phone/tablet and follow the on screen instructions - When prompted connect your phone still switched off holding volume down or back button - This should start the repair or reformat process

If you are using Windows 8/8.1 or a 64bit operating system then adjust the settings for PC Companion and run in compatibility mode and chose Windows 7 or XP

[Thommo]

If your Bootloader is unlocked then you need to use Sony EMMA

[jea]

It says bootloader unlock allowed: yes

[Thommo]

Then the 1st option should work

[jea]

so i have to try first the system repair using PC COMPANION? Is there a guide on how to do the repair?

[Thommo]

All you can do is a system repair and the guide is in my 1st post

[jea]

Oh ok thanks a lot..i will try this tomorrow and give some feedback..i really appreciate your help Sir

[jea]

Sir i read something on this link http://talk.sonymobile.com/t5/Xperia-Ion/Detailed-Software-Repair-Instructions-using-Pc-Companion-Wi...
Is this the same with the instructions you gave me, i mean this was last year

[Thommo]

The same