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[Q] Unlock bootloader

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plamen97
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Default [Q] Unlock bootloader

Hey guys. I'm trying to unlock my booaloader of my Xperia Z C6603.
When I go to the service menu and check it says "Bootloader unlock allowed: No".
The point is, that I haven't bought my phone from a carrier, it's unlocked from factory and I don't know why I can't unlocked it
 
kingvortex
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If it says "No", then it's permanently locked.
Did you purchase it brand new, directly from a store or used from a third party?

Sent from my C6603 using Tapatalk
 
plamen97
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If it says "No", then it's permanently locked.
Did you purchase it brand new, directly from a store or used from a third party?

Sent from my C6603 using Tapatalk
I bought it second hand from ebay
 
kingvortex
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I bought it second hand from ebay
Then it's possible that the seller flashed generic software on a carrier supplied phone that they network unlocked before selling it to you.

You should contact Sony support and they should be able to confirm this if you supply your IMEI number.

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plamen97
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Then it's possible that the seller flashed generic software on a carrier supplied phone that they network unlocked before selling it to you.

You should contact Sony support and they should be able to confirm this if you supply your IMEI number.

Sent from my C6603 using Tapatalk
I contacted Sony and my phone was branded to Three UK, so I can't unlock the bootloader
 
kingvortex
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I contacted Sony and my phone was branded to Three UK, so I can't unlock the bootloader
Sorry to hear that.

Did the seller advertise it as an unbranded phone? Perhaps you can contact eBay to see if something can be done, even if it's some time after purchase. It's worth a try.

Sent from my C6603 using Tapatalk
 
plamen97
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I was just thinking, what will happend if I try to unlock the BL with flashtool? Will it brick my device?
 
androidtweaker1
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I was just thinking, what will happend if I try to unlock the BL with flashtool? Will it brick my device?
You cannot unlock a BL locked phone using flashtool.
If you want a different rom there are plenty of stock based custom roms just use the search function
Hit thanks if helped

Current Devices
Sony Xperia Z: Stock 4.4.2 rooted
Samsung Galaxy Nexus: Paranoid Android
 
kingvortex
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I was just thinking, what will happend if I try to unlock the BL with flashtool? Will it brick my device?
It 100% won't work. You may soft brick the device, but most probably it will just fail with no adverse effect.

Sent from my C6603 using Tapatalk
 
plamen97
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You cannot unlock a BL locked phone using flashtool.
If you want a different rom there are plenty of stock based custom roms just use the search function
I know, but I want Paranoid and to have it I need a custom kernel :/

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