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Please read this if you considering unlocking the boot loader or rooting your phone.
Please note that you may void the warranty of your phone and/or any warranty from your operator if you unlock the boot loader. You should only unlock the boot loader of your phone if you are an advanced user with good knowledge of the technology and risks involved.
For more information go here http://unlockbootloader.sonymobile.com/
Please also note
The Sony Xperia support team will not be able provide any support, related to unlocking the boot loader or rooting your phone.
We also recommend you to read the below blogposts.
Sony Xperia support team
2015-08-19 07:05 AM
Emma works very fine on my laptop so looks like antivirus or similar softwares are giving troubles or maybe the WiFi connection.
Could you try on a different PC ? also on a different wifi connection ?
2015-08-19 10:51 AM
I tried running Emma on two different computers:
- a laptop running windows 10 (x64) on a wifi connection
- a PC running windows 8.1 (x32) on the same internet as my laptop, but using a wired connection
I also tried turning off my firewall and antivirus (Avast Free) but the error persists nonetheless.
2015-08-19 08:45 PM
Tried on a different PC today on same network running windows7 x64 and it worked.
Then went back to original laptop where I was having problems and with no changes to anything it worked first time .
The laptop had remained switched on in sleep mode so it had simply resumed) rather than being rebooted.
Suspect it must have been something server-side which has changed overnight ?
Anyway - I'm back working again now which is nice but wish I knew why !!
2015-08-19 10:27 PM - edited 2015-08-19 10:27 PM
It worked for me later today as well! I just tried turning off all my antivirus protections and firewall and it worked this time. Weird. Anyway, I'm pretty happy with my new firmware, thank you for the guide! :-)
2015-08-31 03:33 PM
2015-09-28 09:20 PM
I have same problem. Cannot install Emma even with all firewall and antivirus turned off. Works fine on my old Windows 7 PC.
2015-09-29 02:52 PM
I was able to install Emma on my WIndows 10 x64 machine but I am not able to launch it.
It upgraded itself and then when I try to launch it fails:
Th log file has the folloing section at the end:
2015-09-30 08:11 AM