When I bought my Samsung Galaxy SII GT-I9100, it came with the latest official Android update (Jelly Bean 4.1.2). However, it's no longer compatible with many of the current apps, so I was forced to look for unofficial updates. Earlier this year I flashed it with Lineage OS 15.1 (Android Oreo 8.1), and 1 month ago I flashed it again, this time with Lineage OS 16 (Android Pie 9). I attest that my faithful Galaxy SII works as wonderful, and I'm glad that even though it's an "obsolete" telephone (although very advanced for its time), I can keep it updated.
i got it updated all the way to Lineage 14.1 nightly
the builds for the i9100 are no longer maintained, so one has to build from source if really needed
Anonymous, 14 Jul 2019Nice man. You reviewed it well. I only gotta add that you should try a custom rom on this phon... moreThanks :) A Custom ROM is definitely a great idea, however I did struggle and the highest I could go to was 4.4 (still runs all the apps I need).
asiandoestech, 27 Apr 2019I had this phone from 3 August 2018 to 4 September 2018, stopped charging after 15 days then g... moreNice man. You reviewed it well. I only gotta add that you should try a custom rom on this phone for sure. There are roms up to the latest version 9.0 for it. Very iconic phone,its specs were overpowered for its time and thats why its still good nowadays. I'll surely pick one for my collection
asiandoestech, 29 Apr 2019https://www.ebay.co.uk/itm/EXTENDED-BATTERY-FOR-SAMSUNG-GALAXY-S-2-S2-3500mAh-WITH-BACK-COVER-... morei have mine , then i dwnload youtube apps but keep mention . there was a problem starting up. check your network connection and system time. can anyone help me please.
Andy, 24 Aug 2018I cant find a good batery for s2. It is making me crazy. I have tried many. I have iphone 7plu... morehttps://www.ebay.co.uk/itm/EXTENDED-BATTERY-FOR-SAMSUNG-GALAXY-S-2-S2-3500mAh-WITH-BACK-COVER-1YR-WARRANTY/190650301886?epid=19007501293&hash=item2c63a4bdbe:g:4zwAAOxywCJRZkKX&frcectupt=true
I had this phone from 3 August 2018 to 4 September 2018, stopped charging after 15 days then got a refund. I got 4.5 hours screen-on-time with a new battery which is abysmal. Performance was good (surprisingly) on 2.3.4, 4.0.3 and 4.1.2. Loads of battery packs are available at eBay ranging from 3500mAh to 4800mAh, they increase the phone size but you can get at minimum 10 hours screen-on-time which is similar to the Galaxy Fold. I miss it :( Definitely would get one again (as a secondary phone).
Performance (after tweaking the settings) - 8/10, before - 6.5/10
Battery - 4/10 (, with an extended battery - 8/10)
Camera - 6/10
Design - 9.5/10
Screen Quality - 7/10
Build Quality - 6/10
Value - 10/10 (can't get better phones at this price, 16GB storage is uncommon for phones under £40)
How to get Max Performance:
Disable everything below -
- GPS (Location)
- Auto Update in Play Store
- NFC (I9100P)
- System Sounds
- Antivirus Apps (they are useless)
In Developer Options -
- Enable Force 4x MSAA
- Scroll all the way down to Limit Background Processes and pick No Background Processes (doesn't affect functionality)
- For Window, Transition Animation Scale and Animator Duration Scale choose 0.5x or off for all three options (this speeds up the phone significantly)
- Use an Adblock Browser e.g. Brave
How to get Max Battery Life -
- Keep the brightness all the way down
- Disable Notifications
- Disable Auto-Update Apps
- Disable Bloatware
- Turn off System Sounds
- Don't use Live Wallpapers, use a dark wallpaper as this is an AMOLED display
- I highly recommend a high capacity (3000mAh+) as it really does improve battery but adds bulk to the phone, MBuyNow is the best option IMO.
- Downgrade to Android 4.0.4 or 4.0.3 for the best battery life (Play Services will not update by itself, also saving battery), the ROMS are at the updato website for your specific model
Minimum Rating - 49/70 (70%, 7/10, 3.5 Stars)
With performance improvements - 50.5/70 (72%, 7.2/10, 3.6 Stars)
With an extended battery - 53/70 (76%, 7.6/10, 3.8 Stars)
With performance improvement and an extended battery - 54.5/70 (78%, 7.8/10, 3.9 Stars)
Any questions? I'm here to help :)
aw, 19 Apr 2019does this support whatsapp videocalls?Had one a few months back, Whatsapp Video Calls definitely work :)
Beke, 09 Mar 2019please tell me how to change the language from Germany to EnglishGo into Settings [the cog wheel icon]
Scroll down to Language and Input
Select your language [English United Kingdom or English United States]
Been using this lately for my audio purposes only (via amplifier) and it is working very good! Awesome.
It was my first smartphone
I just love how durable it was
later moved to the s4 s7 s9
Still an impressive device in 2019. I am reminded about how light and empty-feeling they seemed after the (then) awesome HTC desire. Almost as much as the first time I held the original Star Tac.
Mine is now 8 years old and with a $10 replacement battery it works well! The OS updates have slowed it down of course and some apps are painfully slow. However, everything works and it is a great emergency phone. The camera looks misty - seems to be an issue with some old devices. When hiking it's a great spare phone but mainly, it's got a heap of tunes and audio books - without a SIM it runs for days and charges very quickly. I tend to walk with it for hours at a time and leave my main phone off...
These things are durable compared to new devices so kids can play with them fine. I wouldn't try to rely on one as my main phone except when trouble strikes. As a spare thing around the house or while travelling, they're still very useful.
The S2 form factor is good, not just for people with smaller hands! I expect that as trend change, an S2 -sized machine with faster internals will again be popular. Maybe we will all have tablets plus a little phone? A souped-up S2 would be very handy.
Still quite usable, I had it for 15 days until it stopped charging. I replaced it with an OEM New battery but it barely lasted 4 hours of screen-on time.
90% of apps will still work
Build quality isn't great, somehow managed to not break even after flexing it with full force
Android 4.3 minimum would have been better
Heats up alot around the camera after a few mins of use.
have a problem with the version of android 2.3.4 of the gadget... please help to sought out because it aent suitable for certain apps like whatsapp and flashcore