yashsingh1/xdaforums huggingface dataset:
[Device Reviews and Information] Doman:
Check Huawei 3c or Huawei 3 regarding GPS. Not all MTK phones have issues regarding GPS.

About the GPS in G4S I've found this instruction over the Internet, but I'm missing points 4/6/7/8 options. You guys can check with your phones:

1. Download Mobileuncle Tools for MTK phones from Google Play.
2. Run it and follow: Engineer Mode -> Engineer Mode MTK -> Location -> Location Based Servise
3. Enable "A-GPS"
4. Go to "EPO" tab and enable "Enable EPO" and "Auto Download". Also change "Update Period" for a value "1440" (that equals 1 day).

In phone settings:

5. Follow: Settings -> Location access -> GPS satellites
6. Enable "GPS EPO assistance" and "A-GPS" (I don't have such options)
7. Enable "Automatic download" under "EPO settings" (I don't have such settings)
8. Enable "Use A-GPS only with home network" under "A-GPS settings" (I don't have such settings)
[Device Reviews and Information] longo213:
Some useful Play store apps (only for rooted phones!)

EPO download (in case the automatic download is unreliable)

MT GPS EPO Fix

Manual configuration of NTP server

FasterGPS
[Device Reviews and Information] pozzeco:
And it helps?
[Device Reviews and Information] kolibri.croatia:
http://m.mobilarena.hu/tema/jiayu_g4s/hsz_101-150.html

link above helps me...
[Device Reviews and Information] Doman:
That is so nice of you... If you could only translate it or make a guide for the rest of the world that is even better.
[Device Reviews and Information] Ouzo:
Just use Google translate...

https://translate.google.com/transl...hu/tema/jiayu_g4s/hsz_101-150.html&edit-text=

The same information is available in a bunch of places, just Google. It still doesn't improve accuracy.
[Device Reviews and Information] Doman:
Google Translator is not that accurate either. Plus it would be nice to read what exactly helped our friend kolibri.croatia instead of trying to read and search the whole topic of english-like-google-translated text from the url.
[Device Reviews and Information] mite_jan:
doesnt need to be accurate 100%

it is understandable

i would like to mention that if fastergps doesnt have your country in it

you can use these gps.conf which are for all countries

just extract the file and replace it

http://xdaforums.com/showthread.php?t=1233359
[Device Reviews and Information] Ouzo:
Quite :)

If you like you can just add your country code to the GPS config file - this was about as useful as anything for me. I also downloaded the GPS fix available within the Jiayu.es app. The main thing, Domain, is just to experiment and see what works for you. If I was suitably impressed by any of the tweaks I'd read when I got the phone last month I would've added them to the OP. The bottom line so far is that GPS isn't great, especially when it comes to accuracy (I don't mean stationary accuracy, I mean when you're moving). MediaTek are currently where Qualcomm was about five years ago. For me this is still a cool phone for a bargain price so I can live with it.
[Device Reviews and Information] Doman:
Anyone desperate can try out this mod:

http://en.miui.com/forum.php?mod=viewthread&tid=10317&page=164#pid471584

Two people on that forum claim that it works.
[Device Reviews and Information] pozzeco:
How about Wifi? It's weak too?
[Device Reviews and Information] Doman:
I haven't noticed any anomalies with WIFI, at least comparing to Samsung phones.
[Device Reviews and Information] 0r3n:
New ROM 23/6/14

Hey guys,

I'm suffering from the GPS too, tried a lot of software fixes and none was helpful.

haven't tried the hardware fixes (all the wires and/or weird antennas that people create). I don't want to have a weird phone, just want the GPS to work properly without jumping to locations (while driving!) that I'm not into.

In the Jiayu app I see that there's an update from yesterday, new ROM, I will be glad-full to hear if it fixes the GPS (if someone already tried it).

hxxp://imgur.com/AvZlbkm

thank you,

Oren.
[Device Reviews and Information] Doman:
This is an "old" ROM, from 2014.06.09, not from yesterday. Still the last one official.

Changelog:

1.Fix MP3 ringtones will be lost, the file manager in the audio file can not be automatic music player problem

2 After entering the corrected file manager, when searching for content background color and font color caused by the same problem can not be displayed

3 increases the system fluency

4 drop-down notification bar style update

5 Increase Desktop phonograph plugin

6 style music player update

7 system two menu style update

8 set - safe in the Variety add more styles and unlock unlock online

9 Set - Common system font settings in the new style replacement function

10 multi-task management to increase a key clean-up memory in the control, and can be unlocked sliding down the process, so important to the process of being cleaned out
[Device Reviews and Information] mite_jan:
in the russian forum some claim that in recovery the buttons light up

hmm strange

not sure if talking about stock recovery or third-party recovery

maybe still there are some led diodes
[Device Reviews and Information] zoomzoom82:
hey.

Can anyone tell me about the audio performance with the Jiayu G4S?

I often go by public transport so i will use this as MP3 Player. :fingers-crossed:
[Device Reviews and Information] vladata:
gps fix not working on my side.It founds satellites but the stay in grey color. I installed the rom which mite_jan recommend

edit:

i installed autocwm v5.5.0.4 for JY-g4s via Jiayu.es app, now the standart combination (volumeup + power) for entering CWM is not working. I'm only able to enter recovery via Jiayu.es app(there is option Reboot in Recovery) also no option "advanced reboot" in developers tools, does anyone have this problem?
[Device Reviews and Information] Ouzo:
I'm not an audiophile, but I'm disappointed with audio quality via both the headphone jack and Bluetooth. However, a couple of users have said Viper4android makes a big difference, but I haven't tried it yet. Perhaps one of the others will chip in.
[Device Reviews and Information] Ouzo:
Volume up and power never worked for me to be honest. I've always used mobile uncle tools app to get into recovery.
[Device Reviews and Information] zoomzoom82:
hmm that sounds not so good.

I have 3 big things that important for me: the accu, sound quality and the quality of the cam.

The accu is the best i´ve ever seen...but audio and cam seems to be very poor...:cyclops:
[Device Reviews and Information] Doman:
What? Since when cam is poor :) In my opinion it is pretty good. Good pictures and videos, quick focus, launch and overall operation.
[Device Reviews and Information] zoomzoom82:
ok. Do you have some sample pictures for me?

What do you think about the soundquality?
[Device Reviews and Information] efthimis13:
View attachment 2815117

Greetings from Greece :D
[Device Reviews and Information] mite_jan:
there is a little trick to get into the recovery while using the vol and power button

i dont remember the exact way but i was entering while holding vol+ and than plug the cable into the computer and than hold the power button a couple of seconds

anyway use the mobileuncle for flashing recoveries or entering recoveries

if you want the advanced reboot there is an option in gravitybox

---------- Post added at 04:57 PM ---------- Previous post was at 04:55 PM ----------

thats becouse you havent tried viper4android :)

you are customizing the sound the way you like :)

lots of options

i have just activated the equilizer and the bass option

---------- Post added at 05:00 PM ---------- Previous post was at 04:57 PM ----------

anyway what camera app are you using guys, not so many apps have ISO control

i am using camera-fv5 which saves the options after closing the app

but configuring the contrast , sharpness and color doesnt have any visible effect for me

bad thing is that it zooms the preview picture a little before taking the photo
[Device Reviews and Information] vladata:
I already activate "advanced power options" , there is reboot in recovery option
[Device Reviews and Information] but-888-:
Recover button combo ONLY works with charger cable plugged in. I tried everything thats only optione when phone is stuck in bootloo. Every other apps don't work if the phone doesn't boot up ;)

Tapatalked with G4S
[Device Reviews and Information] Ouzo:
Yeah, I really need to start trying more options to customise the phone, but for now I'm sufficiently happy with stock.

With FV-5, have you tried selecting the lossless PNG format? I haven't used it yet, but apparently it helps a lot. I think you need the paid version of the app.
[Device Reviews and Information] lycanwrath:
Hmm if this is true then there might be a way to get these buttons to light up!
[Device Reviews and Information] Ouzo:
I think someone got the buttons to light up on last year's original G4, so maybe in time it will work for us too. It's really annoying at night or in a dark room.

My buttons don't light up in CWM, but I never used the stock recovery.
[Device Reviews and Information] Ouzo:
Agreed. WiFi signal strength is better than my Note 2, HTC Sensation and my Tegra Note. The phone signal seems good too.

The camera isn't poor per se, but it's not on par with high end phones with 13MP sensors. It's definitely not as good as the sensor on my HTC Sensation (running very optimised firmware and drivers). When you look closely at photos they tend to lack detail and appear a bit 'mushy', but not necessarily every time. Macro is pretty good.
[Device Reviews and Information] mite_jan:
i dont want to edit the photos on a pc or else

havent made a comparision between png and jpeg but i dont think it will make big difference if i am not editing that photo

and the size will probably be bigger

the video looses frames per second if it doesnt have enought light

i think i saw some hack to get 30 frames in dark with changing some lib or camera files
[Device Reviews and Information] Ouzo:
I'm still quietly hoping that Jiayu might tweak the firmware to get a better result from the sensor. If they don't then this will be my last Jiayu device and I'll try another brand. There's going to be a lot of competition out there in a year or so.

For me the main thing between now and whenever I buy my next Chinese phone is to get European or American tech sites to start reviewing Chinese devices against those widely available in European shops. That way we'll all be able to get a concrete reference point before buying. At the moment there's just too much uncertainty about exactly what you'll get. Still, at least it's cheap and performs well in many areas :)
[Device Reviews and Information] chalimoja:
Most of the issues with the G4S seem to be software related including problems with the camera. Just moving from stock to MIUI 4.6.1 shows that. I think this time around they were just plain lazy with optimizing the ROM for their phones. Its like they just dropped the factory image from Mediatek in and called it a day! To many bugs. The camera sensor is pretty nice in my opinion and it takes some superb macro shots, frankly the best I've seen. Better than even phones like the Samsung S3 plus the video is the same as it captures some great sound. But its just plain laziness on Jiayu's side! You can actually use most stock ROMs from the G5S or S2 and vice verser without issue! Just shows you they made no changes to the factory image from Mediatek. Anyone wanting great sound should install Viper4Android it makes some major difference. I must admit i might look for another Chinese brand next time but no one else offers such build quality with huge batteries at such a low price point as Jiayu.

And those wanting to enter Recovery. Simply turn off the phone the hold the Vol + button and connect the phone to either a charger or PC, wait for the Jiayu logo before letting go of the button and presto you are in recovery mode! Drove me nuts when my phone went crazy due to Xposed Framework and had to use Flashtool to make it work again.
[Device Reviews and Information] Ouzo:
Well said :)

I think I must have been really spoilt by the HTC Sensation's camera and the developers that kept bringing improvements long after HTC stopped supporting it.

It's common for manufacturers to vary suppliers and components during a production run of a device, so I find myself wondering if some of the G4S main boards have a different camera sensor. Just a thought.

In fairness to Jiayu the G4S is much cheaper than the G4T was when it was released so I guess something had to give, including software development perhaps.
[Device Reviews and Information] chalimoja:
I have access to a G4T, ill do a comparison and see what's up. The G4T was almost flawless in software and hardware.
[Device Reviews and Information] jaw2floor:
How does the g4s camera compare to the x7s? Also could you find the refresh rate of the phones display please (find a 'display info' app by wave18)?

My X7 Elite worked flawlessly, so I'm eager to buy the x7s or x8.

Thanks
[Device Reviews and Information] Ouzo:
I owned two X7S' for a few days each. I didn't extensively test the camera because both units had a fault with the touchscreen. I don't have any sample photos left either, BUT I would say the camera on the X7S was better than on the G4S. Please don't shoot me if I'm remembering incorrectly but the iOcean seemed to capture more detail.

The screen on the iOcean was better - it had lovely colours, whites were nice and white, there was virtually no backlight bleeding and it didn't discolour if you pressed the digitiser a bit. I would say the outdoor visibility on the Jiayu is better, but once again this is from memory.

Obviously the battery was smaller on the iOcean which, combined with the full HD screen and the need to push twice the number of pixels around, means the device drained much faster than the G4S. Also, bizarrely, the X7S scored higher in the GPU part of the Antutu test. In general use however, the Jiayu feels slightly quicker but there's very little in it.

I preferred the slightly larger screen size on the iOcean too. As it was only 69mm wide it was still good for one handed use. There were more bugs in the ROM back then.

BUT both devices had a problem with the bottom part of the screen. Something was wrong with the way the digitiser picked up touch input. This meant that if you were scrolling a page slowly the screen would suddenly go mad and the page would jump all over the place. FPS games were unplayable. Were it not for the screen problem I would take the X7S every time, though the battery life on the G4S is a big plus.

Be aware, the buttons on the X7S no NOT light up...
[Device Reviews and Information] juliotec:
Can anyone tell me in america if you have been testing the W-CDMA 850 mhz is working? anyone in america have this phone with 3g?
[Device Reviews and Information] jaw2floor:
Nothing compares to the pixel density on the IOcean. Its a shame about the touch screen issues, the replacement screen for my iocean was faulty, it often detected two points instead of one, and would think I'm tapping the screen super quick when my finger was still. There's a 3000mah battery for the iocean too btw, it makes the phone thicker.
[Device Reviews and Information] Ouzo:
Yeah, I decided to go down the route of having two batteries for the iOcean (complete waste of money once I sent the phones back - I still have two spare batteries!)

Fortunately the G4S doesn't have those touch problems at all, though if I was being really fussy I would like it to be ever so slightly more sensitive and a little more accurate. It really is a bargain for the money.
[Device Reviews and Information] Sup3Roque:
Hello,

I finally installed this ROM and seems quite stable and without the Chinese apps which I thank

Now, I know it has been much debated here with the issue of GPS

however, I think the problem, for most, is the fixed sign, while my problem is the discrepancy between my position and the position indicated

the difference is about 40-60 meters from where I am

I've read several tutorials and videos, does anyone can point me to where I should look to solve this serious problem
[Device Reviews and Information] mite_jan:
Inaccurate position probably because you are locating with wifi connection but not the gps itself, download mt epo app, it should probably fix your problem
[Device Reviews and Information] Doman:
No, inaccuracy is due to a weak phone's antena.

I also confirm problems with proper positioning. I get fix without bigger problems. It takes more or less time, but navigation is still useless at this moment, because navi applications get crazy assigning you to the right path/street.

I don't think it is a software issue. I've tried A-GPS, EPO... a few different fixes you can find over the Internet. But still my phone sees less satellites and get weaker signal than my wifes Samsung S4 Mini, as an example.

I've just ordered some copper adhesive tape and will try to "upgrade" the antena itself. Copper wires did not work for me. Plus I've had difficulties hidding it behind the back cover.
[Device Reviews and Information] Ouzo:
Maybe there's also a quality control issue with the way the antenna connects to the main board. When I use Endomondo Pro to record a cycle trip, I lose about a quarter of a mile over 14.2 miles. Some of the loss seems to come from general inaccuracy, but some occurs where I cycle up a hill under a few trees. Although this is annoying it sounds like mine is actually better than yours for some reason. Sat nav apps in town really struggle - much more so then other phones I've had.

Hope your copper foil experiment works, though I wonder if it's worth looking at how the antenna touches the motherboard to see if there is a good connection.
[Device Reviews and Information] mite_jan:
i dont have problem with gps at least by the time i have used it with endomondo

i also have this line for every case in build.prop for the gps

dalvik.vm.execution-mode=int:fast

that quarter mile you are loosing ouzo all phones will lose some length , some more or less

check the road i have biked on the mountain

i went on the same road back but only the second time i was going down really fast so the gps didnt had so much time to be accurate

i also had that power saving option enabled but it said that it wont affect accuracy

http://www.endomondo.com/workouts/360452452
[Device Reviews and Information] Doman:
Well I didn't bother with Endomondo either. The routes it is recording are good enough for me. Not so smooth but good enough. The problem occurred with street navigation :( That is where accuracy and signal strength is important.

What does this "dalvik.vm.execution-mode=int:fast" line do?
[Device Reviews and Information] Ouzo:
All I can say is my HTC performs much better in the same environments (and my Note 2 performed even better before I broke it). It's not terrible, but it should be better. Have you ever used a phone with a dedicated SIRF III GPS chip? That's how things should be :) Performance in co-pilot is very mixed indeed, even in the countryside.

I'd still recommend the phone to people.
[Device Reviews and Information] Ouzo:
http://xdaforums.com/showthread.php?t=2431933

It changes the way Android OS uses/executes the dalvic cache.

Link above.
[Device Reviews and Information] Ouzo:
1835ft of climbing? Nutter ;) I only climb about 500ft on my ride on tarmac and I'm absolutely spent :) I never bothered creating an account to upload my cycling to (I use an older version of the app because I don't like developers changing the goalposts after I've paid for an app). Looking at all that info info perhaps I need to create one!
[Device Reviews and Information] mite_jan:
Oh yeah it is pretty high and gets me exosted
[Device Reviews and Information] Ouzo:
I wouldn't be able to do it without coughing up a lung ;)
[Device Reviews and Information] Ouzo:
http://www.amazon.co.uk/product-reviews/B00IUCIZF2/ref=dp_top_cm_cr_acr_txt?ie=UTF8&showViewpoints=1

Take a look at the last paragraph of this review for the iOcean X7S. If iOcean have issued a fix for the X7S, perhaps Jiayu need to pull their finger out and do the same.
[Device Reviews and Information] chalimoja:
Turn Your External (SD Card) into Default Internal Phone Storage

Hi guys,

I present to you a simple mod to turn your External (SD Card) Storage into Internal (Phone Storage). If you are like me and find the Internal phone storage of the Jiayu G4S to be too little (Its only 10Gb) to save you songs, videos, games and apps you can use this simple mod I made to swap the Internal storage into External and External into Internal so your SD becomes the default write disk for the phone. Am currently using a 64Gb SanDisk Class 10 card.

1. As always go into recovery and backup your ROM incase anything goes wrong!

2. Download the zip file I have attached containing 2 file (vold.fstab and vold.fstab.nand) and extract them

3. Copy the 2 file into the 'system' folder with a Root file explorer app like Root Explorer or ES File Explorer

4. Set the permissions for the 2 file to rw-r--r--

5. Move / Copy and replace the files with the ones in the 'etc' folder also found inside the 'system' folder (you can also back up the original vold.fstab and vold.fstab.nand files found in the etc folder incase you want to revert back to the default setting, simply copy them to your SD).

6. Reboot your phone.

And there you have it. your SD Card is now your default storage!
[Device Reviews and Information] Doman:
I've done the same with my G4S after bought. Even more.

I've repartitioned phone's memory, so it has 13GB of Internal Memory (for applications) and made a real SD card to be seen as Phone Memory (similar like you did). I also got rid of the "real phone memory" from being mounted (there was like 60MB left... kinda useless).
[Device Reviews and Information] Ouzo:
Thanks for the contribution. This is something i used to do in the past on another device but i ran into problems. In general the internal memory is faster than a MicroSD card. Given that the G4S does not support exFat and micro SDXC, and that formatting a 64GB card to fat32 results in slower read and write speeds the result might not be great over time, but it's still a great tweak :)

There's another option if you like, which is to alter EBR 1 and 2 to change the internal partitions. iOcean did this on a recent ROM update for the X7S. The result is that App storage is reduced to about 1GB and the rest becomes available for app data etc. This is the route I personally want to go down but I haven't finished reading up on what to do yet. If you're interested there info over at ChinaPhoneArena.

Thanks again for sharing :)
[Device Reviews and Information] Ouzo:
Cool :)

Can you still mount any part of them phone as USB Storage when you connect to a PC? Sorry if that's a dumb question but I use NotPod to sync with my iTunes library (I know there are other options but some habits are hard to kick).
[Device Reviews and Information] Doman:
The Real SD is being seen on the phone under:

/storage/sdcard0

/sdcard

/mnt/sdcard

When connected to a PC via USB it is normally seen as a drive or as a Phone Memory, depending on the connection type.

Internal Memory is never seen over the USB, and the rest of the "real phone memory" is not being seen nowhere, at the moment. I don't use it and don't need it. If I need it I can always edit "vold.fstab" file (one "hash" sign actually) and it will be mounted after the reboot as "/storage/sdcard1".
[Device Reviews and Information] Ouzo:
OK, cool, thanks. Presumably MTP still works as before? I need to make up my mind what tweaks I want to apply and get on with modding a few things to get the most out of this device. Normally I'd have flashed loads of custom ROMs and mods on a new phone by now but for some reason I don't have the same enthusiasm for it this time around. I must be getting old!
[Device Reviews and Information] Doman:
All the USB connections and the phone itself works normaly. It all looks and acts like there was no SD card inserted to the phone. The SD card is physically inserted, but acts as a Phone Memory :)