[Sony Xperia ZR] Ilko:
These are .ftf files which must be flashed with flashtool. I use it for decrypting and creating them, then I share. Just in case you're wondering why there are more /03 firmwares than /02, it's simply because I didn't find a reliable method for downloading them. Of what I know, model doesn't seem to be checked in build.prop. Even when I flash a /02 FW on my /03 device, it's still identified as a /03 by PCC.

If you want to know your firmware customization, type the following at the stock dialer : *#*#7378423#*#* > Service info > Software info. See the customization thread for more details.

Type :

stock unbranded generic

Localization :

global / all languages

Syntaxe :

Model_Version_CustN°_Rev_Country

Although all firmwares are tested and confirmed working, you assume all facts. DO BACKUPS

Pre-Rooted firmwares

Lollipop 5.1.1 :

C5503_10.7.A.0.222_Nordic

C5502_10.7.A.0.222

Lollipop 5.0.2 :

C5502_10.6.A.0.454_US

Jelly Bean 4.3 :

10.4.B.0.569 by @sijav for both models

C5503 (LTE)

Lollipop 5.1.1 :

C5503_10.7.A.0.222_Russia

C5503_10.7.A.0.222_Turkish

Lollipop 5.0.2 :

Some LP 5.0.2 firmwares

Jelly Bean 4.3 : (Newest)

C5503_10.4.1.B.0.101_1274-0031_R2C_Hong Kong

Jelly Bean 4.3 :

C5503_10.4.B.0.569_1274-1409_R2C_Baltics

C5503_10.4.B.0.569_1275-5351_R1C_Belgium

C5503_10.4.B.0.569_1272-9026_R1C_Mena Arabic

C5503_10.4.B.0.569_1273-9098_R3C_Netherlands

C5503_10.4.B.0.569_1274-1395_R2C_Nordic

C5503_10.4.B.0.569_1273-1456_R1C_Philipines

C5503_10.4.B.0.569_1272-9018_R2C_Russia

C5503_10.4.B.0.569_1273-1862_R1C_Ukraine

C5503_10.4.B.0.569_1271-3682_R1C_Medias (Named Prototype, probably a RC)

Jelly Bean 4.2.2 :

C5503_10.3.1.A.2.67_1274-1409_R1B_Baltics

C5503_10.3.1.A.2.67_1275-5351_R4B_Belgium

C5503_10.3.1.A.2.67_1274-0031_R2B_Hong Kong

C5503_10.3.1.A.2.67_1274-1395_R1B_Nordic

C5503_10.3.1.A.2.67_1272-9026_R1B_Mena Arabic

C5503_10.3.1.A.2.67_1273-9098_R1B_Netherlands

C5503_10.3.1.A.2.67_1272-9018_R1B_Russia

Jelly Bean 4.1.2 :

C5503_10.1.1.A.1.310_1274-1395_R1A_Nordic

C5503_10.1.1.A.1.310_1273-1456_R3A_Philippines

C5502 (HSPA)

The firmwares below aren't from me, I just found them. Please consider thanking people when it's possible.

Lollipop 5.1.1 :

Some LP 5.1.1 firmwares

Lollipop 5.0.2 :

C5502_10.6.A.0.454_India

C5502_10.6.A.0.454_US/India

Some LP 5.0.2 firmwares

Jelly Bean 4.3 :

C5502_10.4.B.0.569_India

C5502_10.4.B.0.569_MEA (Middle East)

C5502_10.4.B.0.569_ Singapore

C5502_10.4.B.0.569_1273-9930_US

Jelly Bean 4.2.2 :

C5502_10.3.1.A.2.67_1272-7047_R1B_Taiwan

Jelly Bean 4.1.2 :

C5502_10.1.1.A.1.310_1373-9930_R1A_US

FAQ :

Q : You said stock ?

A : "Stock" means original, unmodified. In other words, you'll obtain what PCC / SEUS would have provided you while doing a regular update. The only difference is that you can do a flash at anytime without waiting.

Q : Are they official ?

A : Absolutely. Basically PCC / SEUS download firmwares in 5 generic files. And here comes Flashtool. It's used for decrypting the files contents and assembly the all into one usable file. The .ftf file is the result of that process.

Q : Can I flash over a FW from a different version / origin ?

A : Yes. Whatever if you upgrade or downgrade, you may keep your datas, but the cache and applogs have to be wiped. Everything else must be overwritten for doing a clean flash (don't exclude system etc). If you experience force closes, freezes or instant reboots, a factory reset should fix, so you'll still lose your datas.

Q : Once done, when and what type of updates will I get ?

A : Generic global updates, which are usually released before branded firmwares. It mainly depends on their availability on Sony's servers, meaning it may vary from region to region according to their policies.

Q : Can I flash one of them on a C5502/03 ?

A : I've experienced it and can confirm that both models can be flashed with C5502/03 firmwares. They seem to be the same, except for the fact that you won't get 4G features if a /03 fw is flashed over a /02 mobile, of course. But be advised, I it will replace the software informations, showing you that it's a C5503 if you flashed over a /02 device. This have some chances to brick the device in future, if Sony deploys major updates which won't suit for your device (so you'll probably receive wrong updates). These are suppositions.