Official WP8.1.1 for CSC ZTO [Brazil unbranded]

awandres

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This only affects Brazilian users, since the CSC ZTO is included in national origin (BRASIL with S).
Even so, the rule is clear, so we are obliged to respect it.

" We are South Americans,
and we are also cults ".


Posts in english, please.
 

awandres

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I tried several ways to install the update without losing the compatibility of Brazilian networks of telephony.
Honestly, I think the best way is wait.
There's a rumor that Samsung will release this update globally in early November. It's a rumor, but it's a possibility.

And the "second" best way, 'till now for us brazilians, is the interop unlock, but with some warnings:

1) Be warned that there's no return!!!! (Samsung doesn't offer a firmware recovery tool compatible with WP devices)

2) You won't be able to use the backup of your stuff (if you're doing the downgrade of the PFD) because it only works after a hard reset and the initial settings of the phone (wp 8.1 or higher) AANNNDDD.......

3) YOU WILL NOT BE ABLE TO DO A HARD RESET ON THE PHONE !! This will mess the CSC ZTO installed along with the ROM of GDR2, and the carrier's annoying constant messages will begin to appear.

If all those things don't bother you, go ahead.
 

awandres

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WHAT I DID

- Download the GDR2 firmware I8750XXBME1_I8750OXABME1.rar (unzip this) and the files SamsungUSBDriver.msi and Downloaders / WP8 SMD binary USB Downloader Ver. 3.47.exe
link: https://mega.co.nz/#F!ZBJzGBBL!BLIy2ckuR1EUr4QHUvNWxw

- Download the CSC ZTO file
link: http://forum.xda-developers.com/attachment.php?attachmentid=2463428&stc=1&d=1387462470

- Flash the phone with rom file (GT-I8750 XXBME1_R_signed.wp8) and ZTO file
(how to do here: https://pt.scribd.com/doc/191776255/Tutorial-Atualizar-Ativ-S-Sem-Desbloquear)

- After flash it, no need to enter account or whatever else. DO NOW A HARD RESET !!

- After hard reseting, make the INTEROP UNLOCK.
Follow this procedure: [How To] Install GDR3 on Samsung ATIV S in k… | Windows Phone 8 Development and Hacking | XDA Forums

- After interop unlock the phone, check and install all updates, including the wp 8.1 update 1.

- Be happy !!! ................ and remember...

After all this, IF YOU HARD RESET THE PHONE, YOU WILL HAVE PROBLEMS WITH THE ZTO SETTINGS, that only be solved by repeating all the steps again!
 

awandres

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With all of this, my phone have no more bugs.
Evrything is ok, the c?mera is fast as always, ringtone after soft reset is ok (good bye "over the horizon"), apn is ok, my battery is every day more and more precise and prolonged, the gpu is no longer "glitching" in games...

Finally a phone completely usable and reliable!

Hope help you in some way.
Thanks.
 

awandres

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Well, well. Good topic.
Sadly the content shall be posted only in english. I hope everyone know how to use Google Translator!

Yes! Agreed.
After the moderator's disrespectful attitude, closing the thread 1 minute after issuing the warning could only post in english.......
Seems to joke that a subject that affects and interests only Brazilian users should NECESSARILY be posted in English.
But, rules are rules.

By the way, I forgot to credit to you, Luis_Oliveira the interop_unlock possibilities that i had experienced, and the only way that works for us ZTO users (so far). Thank you!
 

JFMoretti

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My phone had only CSC ZTO (Brasil) and now it has win 8.1.1 (CSC ATO). I did everything explained on page 1. Now I have 6 CSCs: ATO, BTU, DBT, ITV, XEF, and XEO. Everything is Ok. Just one problem : I receive alerts from my mobile operator every minute. I don't know what is that. I think the return to CSC ZTO would remove this problem, but there isn't this choice. Some suggestions ? Apply interop-unlock ? New files at this time ?Thank's.........
 

RoyalX

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... Just one problem : I receive alerts from my mobile operator every minute. I don't know what is that. I think the return to CSC ZTO would remove this problem, but there isn't this choice. Some suggestions ? Apply interop-unlock ? New files at this time ?Thank's.........

See if your APN settings are right.
 

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