yashsingh1/xdaforums huggingface dataset:
[Device Reviews and Information] Ouzo:
I don't know if you can merge the whole internal memory, but you can change the amount of space allotted to phone storage and internal SD. To do this you have to edit the files EBR1 and EBR2. There's a tutorial over on GizBeat and China Phone Arena. Be really careful though. If you search this thread I think there are users who have already repartitioned their internal storage (as well as swapping internal storage and the SD card, which is easier).
[Device Reviews and Information] yungwizzy:
hi is there any rom that reach 30000 points on antutu for jiayu g4s??
[Device Reviews and Information] Tarts5:
Hi, im thinking on buying this phone, but need to make sure that it has a strong signal. Im from Estonia so I need wcdma 900/2100, this review claims that it supports these frequencies but ive heard that some jiayu g4s phones only support wcdma 2100 frequency instead. Is this true?

In addition, how long screen on time are you guys getting on the latest ROMs?
[Device Reviews and Information] jojimat:
CM Themes

How to install CM Themes on G4S ?

I'm using SPAOSP Rom.

Thank you.
[Device Reviews and Information] mite_jan:
turn phone on

is there any way to turn the phone on without the poweron button ?
[Device Reviews and Information] Ouzo:
Have you broken the power button ribbon when changing the screen?

Could you mimic the power button by briefly connecting the right contacts where the power ribbon connects to the main board?
[Device Reviews and Information] mite_jan:
changed the screen and mounted the phone and everything went fine althought the screen was LG

but then i dismounted it again becouse the gps was not working and the flex cable that is for the powering the device split in 2 parts

now i cant turn it

i have ordered replacement but then again ......

still 1 month without a phone

this thing is soldered to the board and i dont think you can mimic it

while conecting to the charger the phone doesnt turn on like on some tablets

i am wondering if tools like spflashtool can turn it on
[Device Reviews and Information] Ouzo:
I think mine is nearly broken from trying modified GPS antennae. I hadn't realised it was soldered to the main board.

Yeah, was wondering about either SPFlashtool or MTKDroid Tool. The only time I used SPFlashTool I did it without the battery in I guess it might be worth a try.
[Device Reviews and Information] mite_jan:
the only thing i can remember is give command somehow to go into recovery with these tools but then again in recovery the power button is used for confirmation to reboot the phone

except if i put touch based recovery

or use adb

no idea
[Device Reviews and Information] Ouzo:
I can't remember if the phone automatically reboots after you flash a ROM or recovery from SPFlashtools. I guess the trouble is even then you would have to keep the screen on permenantly. Very frustrating, especially after you successfully changed the screen :(
[Device Reviews and Information] mite_jan:
yeah very frustrating

when i conect the phone to the pc at the starts it boots preloader (which can be used in spflash tool) and after couple of seconds it is starting to charge the phone)

as far as i know mtk droid tools works only with usb debugging enabled

and yes mtkdroid tools allows you to enter recovery after flashing it i think but works only with usb debugging i think

so i dont think there is a way to use adb controls too becouse i cannot install the adb driver without booting the phone
[Device Reviews and Information] Ouzo:
I agree, from what I know adb is right out.

I think you are back to trying to make the circuit manually to start the phone. When you press the power button it would only depresses that little dome shaped piece of metal on the ribbon, so surely it would be possible to make that connection manually for a second or so (with the back and the outer chassis off)? It's the only other thing I can think of. Maybe someone else will chip in with an idea.
[Device Reviews and Information] mite_jan:
yeah making the circuit with a screwdriver worked

i remembered this but was scared to try it

thanks mate

now i should not turn off that screen :D

when that part arrives i visited one shop and they told me they can solder the part and charge me 10 pounds

well that is my only option i think :)
[Device Reviews and Information] Ouzo:
Cool, well done :)

What we need is a custom kernel with 'sweep to wake'. My old HTC Sensation has a custom kernel with this feature. All you do is sweep your thumb along the capacitive buttons in one direction to bring the phone it off standy, then in the other to turn it off. Maybe you should ask the TeamForce guys if they could add the feature to their custom kernel. I've no idea how difficult that would be of course.
[Device Reviews and Information] SkubiDoo:
Smart awake in KK is also option to wake up phone without the power button

Wysłane z mojego V819_3G przy użyciu Tapatalka
[Device Reviews and Information] Ouzo:
Do you know if it works on early G4S phones? I read somewhere that only the more recent models are compatible. I'm still on Jelly Bean so I haven't got a clue :)
[Device Reviews and Information] SkubiDoo:
I have no idea. On my phone with LG screen and latest MG ROM it works fine.

Wysłane z mojego V819_3G przy użyciu Tapatalka
[Device Reviews and Information] Ouzo:
OK, no worries. We'll all just have to try and see what happens. Perhaps it will solve Mite's problem for now.

I think my screen is auo. It's definitely 10 points of touch. I was messing around in MTK Engineer mode the other day and found this under the 'other' tab.
[Device Reviews and Information] indiffereddie:
Yes, and not only that - you can wake the screen using volume buttons, you have it in settings :)
[Device Reviews and Information] Ouzo:
LOL, of course! How stupid of me! On the early ROMs the volume buttons wake the screen even if you turn the option off. Silly me. Thanks!
[Device Reviews and Information] mite_jan:
yes but this is when the phone is already active you can wake it up from deepsleep

i am talking about turning the phone not waking

i can also wake the phone from volume buttons
[Device Reviews and Information] SkubiDoo:
Just turn it on and take care about battery ;)

Wysłane z mojego V819_3G przy użyciu Tapatalka
[Device Reviews and Information] Ouzo:
My fault, I caused the confusion by being stoooopid and mixing the two problems ;)
[Device Reviews and Information] Mbariah:
Anyone know why most custom Roms won't allow me to change to art from dalvik?I'm currently on Chilapos latest ROM and despite it not being deodexed I can't change..[emoji53]
[Device Reviews and Information] jojimat:
How to replace Kinguser with Supersu without loosing the Root access on G4S ? :confused:

CM security is detected kinguser as Hack tool , pls help me.

Thank you.
[Device Reviews and Information] Ouzo:
Please forgive my ignorance, but does the stock ROM contain kinguser or is it in a different ROM?
[Device Reviews and Information] jojimat:
I'm using SPAOSP Rom from Team Force , kinguser is built in SPAOSP Rom . after today's virus definition update , CM security detect this as hack tool.
[Device Reviews and Information] Ouzo:
[QUOOK=jojimat;56596680]I'm using SPAOSP Rom from Team Force , kinguser is built in SPAOSP Rom . after today's virus definition update , CM security detect this as hack tool.[/QUOTE]

Ah, ok. I guess this is one of the risks of using custom firmware and root in general. All kinds of bad stuff could be in these ROMs (including the so called official updates). Anyone can download a kitchen and start cooking ROMs adding things without fully understanding the implications. It could also be that this is a false positive.

Could you push superuser to the right location, then delete kinguser?
[Device Reviews and Information] jojimat:
Ah, ok. I guess this is one of the risks of using custom firmware and root in general. All kinds of bad stuff could be in these ROMs (including the so called official updates). Anyone can download a kitchen and start cooking ROMs adding things without fully understanding the implications. It could also be that this is a false positive.

Could you push superuser to the right location, then delete kinguser?[/QUOTE]

what is the procedure to push superuser to the right location ?
[Device Reviews and Information] Ouzo:
what is the procedure to push superuser to the right location ?[/QUOTE]

Um.....er....using mainly spoons?

I'm not actually sure if you can do it using a file manager or if you would need to flash it from recovery, then delete kinguser manually. I wonder if you could even do it from a PC using ADB. I lack the experience to know. There will be info here on XDA though because it's not going to be specific to this device.

What happens if you download SuperSU from the Play store then manually delete kinguser?
[Device Reviews and Information] leuk_he:
Root does not belong in a normal phone according to anti virus software. Is does not name it a virus , nor a trojacn, but a tool to hack(modify) your phone. Supersu/ superuser falls in the same category.

kinguser does call home, and does show you you % of users did approve / unapprove a certain app for root.

But do note that roms with spyware exists
[Device Reviews and Information] indiffereddie:
I find Team Force roms quite badly cooked, many force closes and superuser doesn't work properly, just as Titanium Backup. Chilapos rom is by now the best!
[Device Reviews and Information] stu1690:
So I have been on stock jelly bean ROM for a few months now and I am wondering if the stock kit Kat ROM is any good?

Jelly bean is not too bad for me but I miss the little things that my nexus has on kit Kat.
[Device Reviews and Information] Triplefun:
OTG USB Volume control

I purchased a G4S earlier this year and have been delighted with the quality and functionality. I still have the original Android 4.2.1 and have found no reason to change. However, I have just bought a HiFImeDIY android USB DAC to enable playback of quality audio through headphones using USB Audio Player Pro. The G4S recognizes the DAC but the music plays only at full volume. I noticed there have been similar issues with other Android USB OTG outputs and that there exist updates to the ROM to support the volume control - see http://xdaforums.com/showthread.php?t=2546065. Alternatively, if this has already been implemented then please could you give me the details of the ROM I need to install.
[Device Reviews and Information] Ouzo:
The audio quality out of the headphone jack is poor, eh?

I think there are various holes in stock Jelly Bean. USB OTG charging is not implemented. Using miracast wireless screen mirroring volume is set to max. Using a Bluetooth controller HID isn't implemented as it should be (e.g Moga Pro Controller doesn't work in HID mode).

There are various things mentioned in the link you posted, including a custom kernel. I just don't think we're going to get that level of tweaking for our device. Has MediaTek even launched the full source code yet? Unless I've missed something I don't think they have.

You could try TeamForce's Spanish open source ROM perhaps, though I'm still on JB myself. Beware of the problems upgrading to KitKat in general which makes changes to the touchscreen driver that cannot be reversed (though Team Force have created a patch to help downgrade).

Hopefully someone else will pitch in.
[Device Reviews and Information] Triplefun:
My apologies - I found there is a slider on the right hand side used to control the volume - should have read the instructions !!! And it works LIKE A DREAM. A magnificent improvement on the G4 -the best $30 I have spent !!!
[Device Reviews and Information] Ouzo:
Excellent, do you have a link for where you bought it from? I might just treat myself.
[Device Reviews and Information] Triplefun:
You can get them on eBay or slightly cheaper from the manufacturer - see hifimediy dot com. I live in NZ and it took 8 days to arrive. Their PC usb2 sabre DAC also works a treat.
[Device Reviews and Information] mite_jan:
i think i finally get the phone functional

bloddy hell it was not easy to change the screen :) at least to not get it squeaky after you assemble it

and the replacement button works good too

btw i did gps mod too with copper and it really improves the gps signal (just that i dont know why i am loosing the locking of the gps for one day usage or after the restart )

wondering if now is the good time for kitkat or still wait

thinking of these 2 deodexed roms based on latest kitkat

http://www.needrom.com/download/custom-20140927-mg/

http://www.needrom.com/download/v9-045/
[Device Reviews and Information] Ouzo:
Cool, well done :) Mine was squeaky too after I tried the antenna mod. After some head scratching I noticed the little clips along the side. It was really hard to get them to fit in, but after I did the squeaks went completely.

Which antenna shape did you go for? Did you leave the original antenna in place too? I did. However, a couple of days ago I decided to remove my first attempt because WiFi signal seemed a little worse and even though GPS Test showed a better signal, in Co-Pilot accuracy was still poor. Maybe I should try again with a different shape.

I've been thinking about trying KK too but can't make up my mind. I'm also thinking about a ZTE Nubia Z7 Mini early next year, but I don't know if I can justify the cost. Might have to keep the Jiayu a bit longer. Don't think I'll buy another one unless they improve their ROM updates and make sure the GPS works properly ;)
[Device Reviews and Information] mite_jan:
i left the original antenna becouse when i put on top of the original antenna copper sticky copper it didnt worked at all

i went with the form F althought i have read Z should be good too

doesnt need to be touching the original antenna just needs to be closer to it , aluminium or copper should do the job
[Device Reviews and Information] indiffereddie:
Could you guys take pics of those things you made for gps, please? It's hard to imagine when you explain by words, pics would explain it way much better :)

And yes, it is about time to switch to KitKat, for me chilapos rom is the best by far - as stable as stock JB, very fast and fluid.
[Device Reviews and Information] SkubiDoo:
In my opinion SPAOSP it's the best ROM now. The only thing which doesn't work is auto brightness. Definitely battery works longer on this ROM compare to the others
[Device Reviews and Information] Ouzo:
Sorry, I removed my modified antenna now. I copied Vladimir's, pictured here: http://www.needrom.com/download/chilapos-rom-2/comment-page-13/#comments. I did not touch my original antenna. I removed the inner back cover and made sure I passed some of the copper foil through the slot in the cover so that it touched the pins on the main board.
[Device Reviews and Information] srkonus:
Hi,

i use Chilapos ROM since couple of months now. With the newest ROM version i had some problems.

After a reboot of the phone my apps lost informations. I had to login into facebook, dropbox or so again. Also the app Quizduell does not work anymore. Yesterday i got an update of google calendar and this also crashs.

Has anybody a idea?

Kind regards

Srkonus
[Device Reviews and Information] fahy93:
Hey guys I have been using my G4S for a while now and I love it, but have any of you had problems with the headphone jack? Mine stops working if a headphone jack is twisted a certain way. Is this easily fixable because I don't want to go through the process of returning it? Also my mobile internet is pretty poor. When it is on HSPDA+ everyting is fine, but anything lower and nothing loads. Thanks.
[Device Reviews and Information] Ouzo:
I guess it could be a problem with earth (ground) inside the socket, or the way the socket is mounted to the main board. I guess it could even be dirt. The inner back cover that is held on with eight screws comes off fairly easily, but the headphone socket looked like a self contained component mounted to the main board. I think fixing it would be awkward....

Data has been fine for me but I haven't used it too much to be honest so perhaps someone else will pitch in. The phone antenna is the one you see towards the base of the device underneath the back cover. (WiFi and GPS are at the top) .
[Device Reviews and Information] indiffereddie:
I had exactly the same problem with Nokia headphones. All the others work just fine. Try another headphones, hopefully it's about the jack of those headphones, not the phone :)
[Device Reviews and Information] ricain59:
Hi,

I've view this phone for substitute my samsung galaxy w. It's a good choice?

Thanks for help.
[Device Reviews and Information] Ouzo:
The Jiayu is much faster, has a much more detailed screen and more RAM/storage. On the other hand, the screen is an inch bigger making the device larger overall. For me the size is fine though. Do you like Samsung's TouchWiz overlay and other customisations? If the answer is yes, you might be better off with another Samsung. Personally I like the Jiayu, though the GPS problem remains annoying.
[Device Reviews and Information] ricain59:
Thanks for reply Ouzo.

I only want phone for apps (not game), faster browser and no like customization samsung.

GPS is slow? I used only 1 or 2 on year.
[Device Reviews and Information] Ouzo:
You should find it much much faster than your Samsung. GPS can be either quick or slow to lock. Sometimes it only takes 9 seconds, sometimes 6 minutes. When using an offline satnav app (such as CoPilot) it can be very innacurate. Your position is often shown on the wrong road for a little while before it corrects itself. The camera will be much better too. I know you're not interested in games, but it's actually quite good for them if you ever decide to try some :)
[Device Reviews and Information] Makarios:
KK update, recovery mode loss?

Hi all,

Thank you to OP as well as many others who have contributed to this thread.

I've finally got my hands on a G4S and have been doing a lot of reading about upgrading to kitkat.

From various comments on needrom, there seems to be a issue that's possibly limited to certain hardware batches of G4S, where after update from 4.2.2 to 4.4.x the boot logo and animation is gone, but more critically, phone is not able to enter recovery mode.

This seems to happen with LG47 screens (which I have, 10 point touch) although I can't tell from what I've read if that's certain.

Here's two links to comments for reference: [1] [2]

Could anyone share any insight into the issue, or has anyone with with a LG47 screen had success upgrade to KK without losing recovery mode?

Thanks much in advance.

Another thought I had was updating to the last 4.2.2 rom, just to take advantage of any bugs/minor features fixed since the stock rom that came with the phone, 20140410-165225.

The last 4.2.2 update I could find was stock G4S-20140609-211642, but the crazy thing was finding reports of trojans included in that stock rom, talked about in this XDA thread

Complications abound everywhere it seems, with updating rom on the G4S. . .
[Device Reviews and Information] Ouzo:
What firmware did your G4S arrive with? I'm still on the stock April firmware. Apart from the bugs noted in the OP I'm fairly happy with it.

RE loss of access to recovery....I can't tell from the comments if this is really a problem or if people are using FashTools incorrectly. Unless Jiayu suddenly improve camera and GPS performance, I may well stick with JB. To be honest the GPS problem makes me want a new device, even though there are so many other things to like about the G4S.
[Device Reviews and Information] Mbariah:
I have the lg47 screen and have successfully flashed over 3 iterations of kitkat stock(currently on 20141022-222444) as well as 3 custom kitkats without loosing anything...

When migrating to kitkat, be sure to select firmware upgrade in flashtool..

Also when using most roms and you want to access recovery mode when power is OFF, you MUST connect the phone in the charger or usb(into power) BEFORE booting then hold the Vol UP and PowerON simultaneously and voila..

Luckily, if you are accessing recovery mode when phone is ON you can simply use xposed or mobileuncle...
[Device Reviews and Information] junglik:
I have the same problem... No solution, meanwhile.

25.11. The solution worked for me: "Try flash official 20141113 ROM without battery in your phone via upgrade mode.." :)
[Device Reviews and Information] indiffereddie:
New official version of KitKat rom available: http://www.ejiayu.com/en/News2-92-185.html

JIAYU G4S (2GB+16GB) Android4.4 ROM(20141113-154404)
[Device Reviews and Information] Mbariah:
You have to admit...Jiayu are commited..at this rate, we may as well get lollipop maybe nxt year??
[Device Reviews and Information] Ouzo:
Given how many issues lollipop has at the moment, I'm not sure I want it ;)

Have Jiayu actually fixed any of the more annoying bugs yet?
[Device Reviews and Information] Mbariah:
Am using the 20141022 kitkat build and haven't come across any issues...which annoying bugs were u referring to?

True Lollipop is rather unstable at the moment but i'm sure things will get better...
[Device Reviews and Information] Ouzo:
Caller I.D/SMS bug, camera performance, GPS etc. Just the stuff I mentioned in the O.P :)
[Device Reviews and Information] Mbariah:
I can confirm the caller I.D bug was fixed..Camera: everythin works just as expected just dont expect too much..and where i come frm accurate GPS is just but a myth regardless of whether u have an Iphone,Nexus, S5 or Jiayu[emoji17] ..not that it doesnt work but that the lack of even a single ntp pool in the whole country means GPS will never get an accurate fix..always a huge blue circle about 500m+ radius.
[Device Reviews and Information] Ouzo:
Eeeek, that's a pretty poor level of accuracy for GPS. I guess over here we're very lucky. Once you get used to something, when it doesn't work right it's annoying ;)

I was just about to download the official November ROM but I read somewhere that Superuser is no longer supported. Poop. I'll carry on waiting. Jelly Bean is still pretty good for me.
[Device Reviews and Information] indiffereddie:
My GPS now works slightly better than on stock JB, I am using Chilapos KK from September. The only "bug" that I've found so far is that you can't turn off sim cards from the Settings app, but you have to use some other app or a toggle instead.

Btw which app for SMS do you use? There aren't any available on Google Market that support dual sim phones, so I have to deal with the stock app :(
[Device Reviews and Information] Mbariah:
Am on the Chilapos latest rom 4.4.2 G4S-20141022-222444 and it can turn off any sim card from the SIM Management option in Settings...
[Device Reviews and Information] indiffereddie:
Try "MTK Control" app, it's a perfect solution for me [emoji4]
[Device Reviews and Information] Annie Y:
I am interested with the JIAYU G4S mobile phone, but i wonder whether it is the version of bluetooth 2 or 4?
[Device Reviews and Information] Ouzo:
Bluetooth 4.0
[Device Reviews and Information] mebitek:
Hi guys, Someone knows how to fix the antutu 2d error on spaosp ROM? It is based on 4.4.3
[Device Reviews and Information] pkfloyd:
every mouth jiayu rom developer team make new rom and last 3 they have make are very very good.. (dont have tired last one) becouse the version ..-222444 (from last mouth) are exelent.

some coocker are made very good roms to with jiayu roms as base.

i have come from crapy Samsung o ongly is a live becouse xdadevelopers, wen i strat loock to new phone i like jiayu g4s afther 1 time that a saw a picture from im, start to read opinions on web. the commited off jiayu team it was a strong reason to by.

afther a few mouths like to say its very good phone, the ongly thing thats it less good its gps, but jiayu team are trie to correct this and the build from last mouth gps are now fine, not great but fine.

now i hope xda developres open a seccion to this phone/company becouse they deserve, its very good company.
[Device Reviews and Information] indiffereddie:
What is the best KK rom so far?
[Device Reviews and Information] Darkside1984:
In my opinion, the ROM with a better performance in our G4S is Team Force's SPAOSP.