Anonymous, 23 Jan 2015sO How to backup the firmware??Use 1 of the recoveries (Clockworkmod, TWRP, Philz). Plenty of guides and tutorials on XDA, very easy to find.
Anonymous, 22 Jan 2015So it means I remain stay on 4.1.2.... as it has only wifi range issue... AS router is placed ... moreYou can back up current system, upgrade to 4.3 of you choosing (.205, .207 -which are the same- or some previous version, but I personally don't recomend them, too unstable) and if not satisfied, downgrade back to the same 4.1.2 you had, and restore the backed up content. Up/downgrading are fairly straightforward processes and nothing to be affraid of, but you need to be carefull and pay close attention to the steps of the guide you follow.
Heartstoler, 23 Jan 2015tell me ur from which region? means country? Pakistan
Heartstoler, 17 Jan 2015yes .. u can downgrade urself .. no need to unlock boot loader ..no need to worry about warra... morefrom where I can download 4.1.2 .ftf File ... kindly share the link of original firmwares...I have found one website of firmwares download http://www.flashtool.net/firmwares.php
But does mean "12.0.A.1.257 Customizd US"...??? IS THAT original one???
mag c, 22 Jan 2015how about ram management and battery or any other bugs? do the official apps like Walkman, mov... moreI always get more than 400 mb free ram.. Walkman, movie, like stock apps won't work in lollipop.. as it is based on pure Google.. u can use Apollo player, Google play music apps
how to avoid 4.3 update and also tell me if I don't update its system update can I update sony apps
suomynona, 22 Jan 2015Screen flickering is still very much present. Display will freeze for 2-3 secs only when the p... moreSo it means I remain stay on 4.1.2.... as it has only wifi range issue... AS router is placed in my room so wifi range will not be problem for me.any other problem i n 4.1.2???
SONU, 21 Jan 2015has the lag and any other issues like auto restart screen flikering gone in 4.3 with .205..tel... moreScreen flickering is still very much present. Display will freeze for 2-3 secs only when the phone heats enough, sometimes multiple instances in a row (eg. 1hr or more of video playback or during some games - in short, a prolongued period of usage). I experienced 2 occurrences of autoreboot since upgrade to 205. Not much, but it can happen.
There will be various problems, like, not possible to transfer files onto ext_sd through USB cable (even after reset), or Wi-Fi not working properly when in airplane mode. Lancher will surely redraw after virtually any web surfing, with any browser other than Opera Mini, IME.
Camera, meaning pix quality, is a gigantic cr*p and no amount of new code is gonna fix that.
Heartstoler, 18 Jan 2015yes .. now I m on cm 12 based lollipop .. 5.0 .. its far better than stock ROM .. just sea... morehow about ram management and battery or any other bugs? do the official apps like Walkman, movies etc work with that custom rom?
SONU, 21 Jan 2015has the lag and any other issues like auto restart screen flikering gone in 4.3 with .205..tel... moreI did not notice any problem with .205 update, only one thing. the only thing is the screen will turn yellow and freeze for few seconds and it will go back to normal again apart from that everything is ok
XperiaSp™, 21 Jan 2015yes. but only problem is wifi range. 4.3 with firmware .205 is also good.has the lag and any other issues like auto restart screen flikering gone in 4.3 with .205..tell me if you have encountered any problem in 4.3 with .205
SONU, 21 Jan 2015If I will stay on 4.1.2 which come out of the box then what you say is it good to buyyes. but only problem is wifi range.
4.3 with firmware .205 is also good.
XperiaSp™, 19 Jan 2015MTK base phone are not that powerful when compared to qualcomm's offerings. but due to softwar... moreIf I will stay on 4.1.2 which come out of the box then what you say is it good to buy
sony, 16 Jan 2015thanks friend but I was considering other phones also in the same budget 150 to 170 USD . but ... moreMTK base phone are not that powerful when compared to qualcomm's offerings. but due to software optimization issue on SP it looks more sluggish than MTK based phones. yes it's true, the initial 4.3 update on SP made it lag a lot, but it was now fixed by the .205 firmware update. on the .207 update which i am using right now i can still notice some lags here and there. the phone only heats up when using mobile data and mobile data+games, the max temp I encountered is 38 degrees celsius. don't worry though all phones does heats up. I didn't encounter battery drain issue, my phone can last 2 days without mobile data. but only 1 day with mobile data and online games around 4%.
personally i would choose qualcomm than MTK. but depending on your choices MTK based phone may be better than SP.