yashsingh1/xdaforums huggingface dataset:
[Device Reviews and Information] Ouzo:
RE contacts. If you do decide to upgrade to KitKat, it looks as though the to min_match =7 line added to build.prop does work on the newer ROMs. See post 2 from memory.

If you add a second format to each of your contacts, remember that when you send an SMS you need to send it to the right number if you want their reply to be in the same thread. I use direct SMS shortcuts on my home screen to people I text a lot so that I don't have to remember that!

It will definitely need to be in fat32. Windows probably won't let you change the file system to fat32 by default. You'll probably need to use a tool to do it. I've used Gparted before now in such situations. The last time I just stuck the card in the phone, then when the phone reports an error, let it reformat it. It's the quickest way really.

Don't forget the ROM is already rooted. You just need to go into settings/security and enable superuser. You need root turned on to delete system apps (such as the font app from the June ROM onwards). You can toggle root off after you've finished.
[Device Reviews and Information] Ouzo:
I agree with but-888, a factory reset is a good way of eliminating problems that have cropped up. Have you tried enabling/disabling 3G on the SIM slot that has a problem? Did you try your partners SIM just to eliminate the SIM itself as an issue? (I'm just throwing out ideas here really because I've no idea what the issue is ;)

Don't forget you can backup pretty much everything with Titanium, CWM recovery and MTK Droid tools (on the PC)
[Device Reviews and Information] Tarts5:
Hi, im thinking of getting this device. Just have a few questions:

How much screen on time are you getting with the G4s

Are the ROMs bug free? I mean are they stable? No freezes or reboots? Or does the software still need some development..?
[Device Reviews and Information] Ouzo:
Dude, there's a screenshot on the very first post showing nearly 8 hours of screen time and battery life has been discussed throughout the thread. Battery life is good, assuming you dont expect to be able to jump start a warp reactor with the phone, m'kay?

All the stock ROMs have bugs of one description or another. Some are discussed in this thread, some in the relevant threads on NeedROM, especially for the official KitKat ROMs. You're just going to have to read and work out if any of the bugs listed are a big issue for your usage habits. My G4S never randomly reboots or freezes. Not once in months of use now. The stock firmware of any flavour definitely needs further development to be considered bug free. I love mine. For the price it is fantastic, especiakly compard to many of the 'mini' versions of flagship phones from the last couple of years. It's fluid and fast but GPS can be very inaccurate once you're on the move for some of us, amd the camera disappoints me, but how you feel about it will definitely depend on your expectations. This phone is not a flagship killer, but it's very competent.
[Device Reviews and Information] Ouzo:
You need the right recovery from v2 to v3, as well as the right recovery for pre-kitkat ROMs. Proceed with caution and backup your IMEI on EACH version of the ROM you try (you can't restore an IMEI made on Jelly Bean on a KitKat ROM, so I've read). Info on NeedROM on relevant threads.
[Device Reviews and Information] Mbariah:
Anyone tried playing Modern Combat 5 on the G4S?mine is laggin so bad its almost unbelivable, even on better perfomance option(lowest). And to think Mediatek said the game would be optimized for mtk6592...
[Device Reviews and Information] Ouzo:
Nooooooooo. I won't be buying that any time soon. For what its worth, Beloko's Kedi Knight ports work very well indeed. I'm still working through Jedi Knight II: Jedi Outcast. I can't believe you can play a PC game on this thing. Awesome.
[Device Reviews and Information] Leasir:
finally i solved it with a TWRP installer (and a win7 virtual machine. and a lot of curses thrown to the usb driver) so i'm now able to install other ROMs. thank you.
[Device Reviews and Information] Ouzo:
Cool, sounds like you had a nightmare! Feel free to share any tips you picked if you think it will help anyone else in the same position.
[Device Reviews and Information] LuxZg:
Just a quick note or two, as I didn't have much time even over weekend to gather my thoughts... but to answer few recent questions:

- battery is great, 8h screen-on time is easily achieved with normal use, and you can go through 2 full working days with this phone, and also additional battery is just around 10$ on most shops. After full day of work I'm currently at 16h 37m of use, and 1h 52m screen on time, 9h 46m WiFi (I switch it off when I sleep), and battery is at 73%.

- no, ROM does not crash, but as Ouzo said - it still has bugs, if they are large or small it's up to you. Personally they don't bother me at all

- my external charger seems fine after all but needs more than 8 hours to charge battery (normal charging in phone lasts about 5h). Since I was just testing with one I'm sharing with other phone I never had chance to actually let it fully charge, but second charger is coming in a week ar two I hope, so I'll do more tests.
[Device Reviews and Information] indiffereddie:
Does anybody know for sure if this phone is a dual band, as it says in the specifications?
[Device Reviews and Information] Ouzo:
So far I've only used the 2100 band for 3G. One of my networks also uses 3G 900 but I don't have any cell towers nearby that use those frequencies.

See screenshot in first post that shows the bands the phone theoretically supports. What bands are you interested in?
[Device Reviews and Information] indiffereddie:
I might be going to Canada and the US soon, that's why I am curious. So far I've been only using European bands.
[Device Reviews and Information] Ouzo:
OK. So far I haven't heard whether or not American 3G bands work. I've seen a few people ask about 850 before buying but I haven't read confirmation either way. You could try looking in the comments sections on some of the Chinese retailers that sell the G4S and see if there's any feedback from buyers.
[Device Reviews and Information] SkubiDoo:
SIM 1

SIM 2

Wysłane z mojego JY-G4 przy użyciu Tapatalka
[Device Reviews and Information] Ouzo:
Thanks, that matches the screenshots I put in the first post :)
[Device Reviews and Information] indiffereddie:
Which means that I can use Jiayu G4S in America as well? :)
[Device Reviews and Information] SkubiDoo:
You have to Google which networks are available in USA..

Wysłane z mojego JY-G4 przy użyciu Tapatalka
[Device Reviews and Information] Ouzo:
Yes, for normal SMS and calls, and in theory for 3G too dependent upon which network you will be using BUT, I honestly don't know if all the bands that MTK Engineer tools claims are supported are really supported. Hope that makes sense. Please let us know how you get on.
[Device Reviews and Information] sparky boi:
Right so I gave it a factory reset the other day but still getting the same crap with the 3g..

Ah will just have to live with it!

Cheers for the ideas people

Sent from my JY-G4S
[Device Reviews and Information] Ouzo:
Did you try the phone before reinstalling any apps?

Are you able to try a different SIM?

I'm clutching at straws here.

Are there any other android devices with the same problem?
[Device Reviews and Information] sparky boi:
Ye tried it for a day without any apps and still got the same thing.

Ah I no man,lost for ideas on what this could be now.

Nah all other android phones I've had never had this problem

Sent from my JY-G4S
[Device Reviews and Information] Ouzo:
Major bummer. Did you try googling XDA and the error message that you where getting (sorry, I can't remember how it was worded off the top of my head)?
[Device Reviews and Information] but-888-:
@ sparky boi, try the sim card of your girlfriend and your sim in her phone, i read on another forum for a different phone, that old sim cards creating issues with newer phones due to higher voltage needed, my last idea
[Device Reviews and Information] New Droid:
I everyone, i'm thinking in buying this phone but after all i've read, all the bugs, the difficulties with the phone is it worth it just because its cheap and has a octa core/2GB RAM/ a big battery?

I'll be waiting for a reply of the owners of this phone. Thanks is advance to all
[Device Reviews and Information] stu1690:
9031

I am expecting mine to be delivered tomorrow and i have been having my doubts about it over the last week while i waited for it to be back in stock.

I will give it a try next week to see if i can live with the flaws it has before i decide if it is worth keeping or to send it back.
[Device Reviews and Information] Ouzo:
I'm pleased with mine after several months of use. I'd like the camera to be better, but that is because I was spoilt by the Sensation and Note 2. GPS is the next biggest issue for me, but I can look very well the that for now. The other bugs are definitely things that could be sorted out by a proper ROM update if Jiayu pulled their fingers out. For £137 I still feel it's excellent value.
[Device Reviews and Information] Ouzo:
I hope you'll be pleasantly surprised and you'll like it. Bear in mind that many of these Chinese phones use very similar ROMs so may have very similar bugs. For example, the iOcean X7s I owned briefly had some of the same issues.
[Device Reviews and Information] stu1690:
Whats the best software to scan for trojans and malware on the G4S?
[Device Reviews and Information] Ouzo:
There are so many options now, both on the phone and off (using PC to scan it, or online). Check earlier in the the thread for malware and trojan for apps an online tools. If your G4S arrives with the June Jelly Bean ROM on there are a couple of things you might like to remove. I honestly don't know if the suspect apps are malware, they may be false positives. I'm still using the April stock ROM which seems to be trojan free.
[Device Reviews and Information] but-888-:
[MENTION=4702556]New Droid[/MENTION]

Definately the best phone for the money, other phones like samsung lg also have bugs. Would buy it again
[Device Reviews and Information] New Droid:
I know that all the phones have bugs, but some companies offer a better support to resolve that and lot of updates to solve. Dont know if Jiayu works that way.

And user [MENTION=715104]Ouzo[/MENTION] whats that you're saying?! Apps with malware on the stock rom? :mad:
[Device Reviews and Information] but-888-:
Team force is doing great roms so far, kitkat etc. I would buy the phone and flash a rom from them and everything should be fine. At least for me this phone was the best Deal i could make. Cheers
[Device Reviews and Information] Ouzo:
Check earlier in the thread. Another user reckoned that the June ROM update introduced malware. His claim, not mine. I never bothered with the June update because I knew it didn't resolve any of the bugs that mattered to me.

Some Chinese manufacturers offer OTA updates, so yes, Jiayu are a bit behind for Western users, but I just didn't want any of those other devices. The only other handset I was interested in was the iOcean X7s which was fantastic, but I had two in a row with a screen fault :(
[Device Reviews and Information] New Droid:
Ok. Thanks, i think i'll be going to a g4s. I want a powerfull phone but not with a big screen (eg: screen above 5 inches)
[Device Reviews and Information] Ouzo:
At only 65mm wide for a 4.7" screen the G4S it is still a very compact device, even though the design is basically two years old now (if you count the original G4 and its development cycle). Even the new iPhone 6 is wider. The Jiayu may be thicker, but for me the large battery is worth it. Today I used Co-pilot for over three hours while I cycled 50 miles, then played Shadowgun on the train for an hour. Those two things are very battery intensive but I still had 27% left after all that. Amazing. I've only used the spare battery I bought twice so far. If Jiayu sorted a few issues out I would recommend it to everyone I know.
[Device Reviews and Information] [W]ar[H]ead:
Hello is it true that 4.4 rom is bugged? Is it possible to downgrade? I should buy this phone with 4.2 or 4.4?
[Device Reviews and Information] Doman:
You can go back to 4.2.2 from 4.4.2-v1 and 4.4.2-v2. There is no way at this moment to get back to 4.2.2 from 4.4.2-v3... so be careful. It is safer to buy a phone with 4.2.2.

KitKat is quite useful on G4S now. It's been there for about 2 months now, so a few updates and customs appeared.
[Device Reviews and Information] Ouzo:
Well said, you beat me to it :)

I read that Team Force are currently trying to create a way back for people on KK v3 - that would be great.
[Device Reviews and Information] [W]ar[H]ead:
Is it true that sd card doesn't work on 4.4? Also did Jiayu still support this phone? Are they working to make 4.4 better?

I'm thinking about buy this phone. What do you think people? Is is the best choice for about 200$?

Also can anybody tell how about GTA SA? It works good?
[Device Reviews and Information] Ouzo:
Google removed write privileges from the SD card when they introduced KitKat. There is a way around this (editing a single permission file) but you need to read up about that elsewhere.

Sorry, I don't know if Jiayu are still officially supporting the device.
[Device Reviews and Information] stu1690:
I received my G4S not long ago and i have been playing with the themes and wallpapers. Can the lockscreen be changed to the same as my live wallpaper i have chosen or am i stuck with the generic Jiayu ones?
[Device Reviews and Information] Ouzo:
Good question, I don't know.... I can't see how to do it and I've never tried before today, um, er....

How do you like it so far? What version/date firmware did it come with?
[Device Reviews and Information] stu1690:
I have only had it an hour so i have hardly scratched the surface yet.

Mine doesn't have the metal plate with the phone details behind the battery, just a white sticker. The battery is also white not green like the ones i seen on youtube reveiws. Hopefully it is genuine as i bought it from Coolicool.

Screen is nice and crisp. surprisingly big for the phones overall dimensions.

Wifi is pretty strong.

My 64gb card formated no problem once installed.

Couldn't get 3G with my network (GiffGaff) but found an app on the Playstore to sort that out. All is well with internet now.

Not tested much else but i will over the next couple of days.

My build number is G4SW 20140609-150354. Android version 4.2.2. Is this the April ROM?
[Device Reviews and Information] Ouzo:
Maybe Jiayu are changing the spec as they go.

No, that's the June ROM. 9th June 2014. Don't panic but that's allegedly the first of the ones with 'spyware'. Two apps to remove if you feel inclined.

I couldn't get data up and running on giffgaff to begin with either so I configured it manually. For some reason other networks seem to get set up automatically.
[Device Reviews and Information] stu1690:
Ok thanks. I will have a look at removing the malware tomorrow when i finish my shift with Titanium Backup.

Should i backup my rom before i remove the malware?

Cheers again for the advice, it is much appreciated.
[Device Reviews and Information] Ouzo:
It's up to you, but I highly recommend it so that you can return to factory settings. It's especially important in case you flash a ROM thatPC corrupts your IMEI number. I used MTK Droid tools on my PC to make a backup of every partition. Don't confuse this tool with SP Falsh Tools which is different. There are tutorials on YouTube and gizbeat on how to do it. Driver installation on the pc can be a pain, especially if you have Windows 8. There are general driver installation tutorials on YouTube too. Again, check gizbeat as a starting place.
[Device Reviews and Information] stu1690:
I have the drivers and mtk droid tool on my pc. Going to try it tomorrow before I delve any deeper into customizing the themes and launchers.
[Device Reviews and Information] Ouzo:
Sounds like a plan :)

Don't forget you can also use Mobile Uncle tools app to backup the IMEI on device, and the Jiayu.es app. You just need to toggle on superuser in settings/security first. If you decide to try KitKat at some point make a new backup of your IMEI. At the moment you can't roll back from v3 of KitKat to any other version.
[Device Reviews and Information] indiffereddie:
Guys, if you have 4.2.2 rom, I need your help - I need files "vold.fstab" and "vold.fstab.nand" from your system/etc folder, 'cause I did some swaps and I forgot to backup those two :( please help.

Btw lately I'm having problems with my phone's memory, it seems... I wanted to move data from my Skype application (around 1gb) to SD card or to internal memory, but I can't find the proper way to do it. That's the biggest app in my phone (including data), so I think that moving the app would solve the problem I'm having with "process gapps stopped working" and my wifi icon becoming gray. When I clear cache of all the apps, everything goes back to normal until data of my Skype app gets growing. Funny thing, when I check my phone storage, it's only 62% full. I don't get why do I get this kind of error message.
[Device Reviews and Information] Ouzo:
Here you go. From April stock ROM
[Device Reviews and Information] stu1690:
Not long in from work and i have backed up my rom and imei. I have installed avast andeset anti virus and scanned with both with no detections of malware or trojans. I have also installed titanium backup and i cannot find the lovely fonts apk or the system one. Should i be scanning the phone with a different app to detect these malware apk's?
[Device Reviews and Information] Ouzo:
If they're not in the location specified earlier in this thread then I guess you don't have them (sorry, as I've never had to deal with them I haven't committed all the details to memory). I'll try and find the post and the link to the thread that member alex1a(?) started.

See post 322 onwards for discussion, links to app scanners etc. Post 380 for link to Alex1a's virus thread for the G4S (sorry I can't paste anything into this comments box at the moment for some reason).
[Device Reviews and Information] Doman:
When we open the the built-in Massages and Phone the dual sim selector appears. But custom dialers and SMS apps does not trigger the selector.

Is there a way to manage which apps cause the dual sim selector appear in the notification?
[Device Reviews and Information] SkubiDoo:
For Sms try to use GoSms ;)

Wysłane z tabletu Onda v819 3g przy użyciu Tapatalk
[Device Reviews and Information] Doman:
Thx, but that's not what I'm looking/asking for ;)
[Device Reviews and Information] Ouzo:
I can't work out where the link lies. Perhaps it's in the framework itself?
[Device Reviews and Information] stu1690:
So far i am enjoying this phone. Things i like are

Battery is tremendous at 3000mah.

Screen is nice and crisp/responsive and surprisingly big for the dimensions of the phone (4.7").

2gb ram and 16gb rom with 64gb expansion.

Octa Core A7 processor is quite fast. On par if not better than my Nexus 4 imo.

Comes pre-rooted.

No malware (have scanned with Avast and Eset)

Gps is close enough for me. I probably will never use it as this is for my work only.

I don't think i will bother changing the rom as 4.2.2 does all i need and i didn't see much difference on my Nexus 4 when i updated to KitKat.
[Device Reviews and Information] Ouzo:
Cool, I'm pleased you like it :) It's very zippy when it's new. Like all android phones are 4.3, without TRIM support, it does show down a bit over time, but mine is still pretty quick after several months of use.

Did you check for the malware files manually as per the posts I mentioned earlier on? If you don't have those files that would be very interesting indeed - kind of makes you wonder about the validity of the ROM update many of us downloaded in June from NeedROM that was supposed to be an official update.

It's amazing how they crammed a 4.7" screen into such a small frame! Many more expensive phones haven't managed that trick.
[Device Reviews and Information] stu1690:
I tried the gps with Google Maps today in my car and it was ****e! Glad i don't need to use it in the future.
[Device Reviews and Information] Ouzo:
Sadly, that sounds familiar. I swore out loud at mine the other day whilst cycling (so there wasn't even a roof or windscreen in the way, for Pete's sake), fortunately no one was and around. Co-pilot is terrible at times, if there are side roads or small housing estates beside the road you are driving on. It only really seems to be accuracy on the move that is an issue for me. When I'm stationary it's pretty accurate. Somewhere in this thread and other places is a discussion about the UTC time bug and whether or not that is causing our problem. Shame, with more optimised camera software and better GPS I would probably have bought a load of these phones and started selling them here in the UK.
[Device Reviews and Information] Mbariah:
Good times Ahead??

Don't know if you've heard but MediaTek just released their first complete source code for their Android One devices..and i mean fully complete(with kernel sources e.t.c..)

http://www.xda-developers.com/android/mediatek-android-one-source/

Sure none of them run on the mtk6592 but its only a matter of time...maybe in the future we might be able to have a fully working Cyanogen,overclock(gamers...) underclock..custom kernels not to mention many more fully ported roms...e.t.c

On that note, there's already a repo? on the kernel source code for mtk6592..https://github.com/tpruvot/MT6592-KK-KERNEL

If there's ever been a better time to be an Mtk user..it's now

What are your thoughts on this?
[Device Reviews and Information] Ouzo:
A custon kernel with sweep to wake would be nice - I miss that from my HTC. I hope MediaTek do release the source code for past devices/SoC, but I wonder if they will. From a business point of view it might make more sense to only release source code for new SoC so that people are motivated to upgrade. I hope that's not the case of course.
[Device Reviews and Information] dgal:
I see on needrom that there is available official ROM update from 09/12/2014. Has anyone already tried this? Can it be safely loaded or it is better to wait for another release? Got a new phone and want to update it to 4.4 version.

Thanks
[Device Reviews and Information] Ouzo:
Thanks for the heads up. Personally I'm going to wait until there is more information about it. I'd like to see a thorough changelog too. Reading various comments on needROM it's clear there are different hardware revisions of the phone - as mine is an early one I'm wary of making a mistake. 4.2.2 is good enough for me for now.
[Device Reviews and Information] stu1690:
I am struggling to get viper4android to work on my g4s. I have tried all of the drivers and none have made any difference to the sound at all.

Can anyone give me a helping hand on how to set it up please?

I downloaded it from the play store version for 4.2.2.
[Device Reviews and Information] Ouzo:
This is from memory because I don't use it on this phone, but do you have Busybox installed and do you have superuser turned on in settings/security? I have a vague recollection that I had to clear data on my music app so or something like that to get it to kick in. I'm very vague on that now. A few people are using it here so hopefully someone will give you a more precise answer. Search XDA too, I'm sure other people will have the same problem but on other devices.
[Device Reviews and Information] Ouzo:
There's a patch and a custom kernel available from TeamForce over on NeedROM for people who flashed KitKat version 3 and want to go back to an earlier version.
[Device Reviews and Information] JeeHaa:
I own a G4S (2/16GB) with "TeamForce G4S AOSP 4.4.2 TF V2" ROM, and I like it a lot.

Now I am considering getting an additional G4SL (1/4GB), and I am wondering if it is possible to use the same Teamforce G4S ROM on that too? I know the stock roms come in a separate version for each, but I am not sure if the differences are just with the partition layout (Flashtool), or binaries as well (flash as ZIP from Recovery)?