yashsingh1/xdaforums huggingface dataset:
[Upgrading, Modifying and Unlocking] CapSizer:
Anybody else with a dead microphone?

My G2S worked great for two days, then started having intermittent and worsening microphone problems. Now more or less permanently dead, except for the occasional brief spasm of life. Works fine with bluetooth headset, everything else worked fine. Tried factory reset, nothing really helped. My guess is that it is a bad part or solder joint, so will send it back in the hope of getting it replaced. Anybody else with a similar problem?
[Upgrading, Modifying and Unlocking] knives69:
Ey! I see similar problem in a Jiayu G2 forum but I think you can try it and tell us

Adjust microphone settings in the phone

1 Install Mobileuncle MTK Tools (Google Play)

2º Enter in to Engineer Mode Menu (MTK)

3º Audio / Normal mode / Type / Mic / Level

4º Set up the 6 levels:

Level 0-255

Level 1 to 235

Level 2 to 215

Level 3 to 205

Level 4-195

Level 5 to 185

Level 6-175

* You have to set all levels to value. Every time you go to a level you must push Set and OK.

5º You must presh Ok again before exit app

6º Restart phone.

**Make at your own risk
[Upgrading, Modifying and Unlocking] M@XIM@L:
Hey. There was a problem.

Skype installed from Google Play. Logged in, come in, then log out. Second time does not logs. Rolling back to the old version did not help (and those for G3). What to do?:(
[Upgrading, Modifying and Unlocking] knives69:
http://www.needrom.com/phone-roms/jiayu/g2s/

2 custom roms Lewa and other :D

I didn´t install it yet
[Upgrading, Modifying and Unlocking] lelepanz:
no any problem for me with skype.
[Upgrading, Modifying and Unlocking] CapSizer:
Thanks for that hint knives, I don't have the phone with me, but will give it a try this evening.
[Upgrading, Modifying and Unlocking] OmTatSat:
fix skype problem on jiayu g2s

I can't post links yet... but i can say that on 4pda forum about g2s on 18 page in message #357 there is refer to message on forum about g3 that have same skype problem, in that massage there is link on skype wiyhout logging problem. Maybe you will be need to registrate on that site to download fixed skype.

i wanted to upload it on this site, but have some site error, so, can't help you more.

sorry for my english...
[Upgrading, Modifying and Unlocking] twrock:
Thanks, but no, I had already tried that. You can install it, but it doesn't work. Animations remain after changing the settings in Spare Parts +.
[Upgrading, Modifying and Unlocking] thingbreaker:
if you want to deny the Animation, try using Nova Launcher, and set the animation speed to fastest :D
[Upgrading, Modifying and Unlocking] OmTatSat:
How about screen jumping? Somebody who was a glitch with screen after flashing, was able to get rid of jitter?
[Upgrading, Modifying and Unlocking] twrock:
I'm using Apex Launcher, which I really like. But it is not the launcher that is the problem. The whole system has animations, that if turned off, make everything seem faster. For example, go into Settings, and you will see that every screen change has an animation. I don't think that has anything to do with the launcher app. Back when I used CyanogenMod 6.1, all those system animations could be turned off.
[Upgrading, Modifying and Unlocking] knives69:
I downloaded the last rom in this page "ROM Mobile JIAYU G2S – ROM﻿﻿ Android 4.1.2 v.2.0" and I saw something strange, before install it, I saw in the system/app and there is a "mzw.exe", it´s a trojan...?
[Upgrading, Modifying and Unlocking] knives69:
This improves the fluidity of cell (not all but a lot of things, including the launcher):

Go to System Settings -> About phone

Press several times on the Android version, will appeear a new menu.

Mark forcing GPU rendering

Reboot.

**In this menu you can deactivate animations.

I DON´T USE IT, but you can try it.

Hope I help you :D
[Upgrading, Modifying and Unlocking] miklos13:
Contacts with defined sim

Hi,

I am planning to buy a G2S. Is it possible in the phone book, to define a default sim for the contacts? I would use the phone with company/personal SIMs, it would be nice to separate the outgoing calls by default, depending on the contact.

M.
[Upgrading, Modifying and Unlocking] kkenpachi:
You can have a default sim, you can have a default for the contacts and you can also define separate contacts with a sim. The intergrade sim management is the best
[Upgrading, Modifying and Unlocking] twrock:
Excellent find! I had no idea those settings were there. Thank you.

But I did not change the "Force GPU rendering" setting. What I did do was to turn off the three "animation scale" settings: Window animation scale, Transition animation scale, and Animator duration scale. In that way, everything is "instant".
[Upgrading, Modifying and Unlocking] sandroe123:
Anyone else having short battery-life? The first weeks it was excellent but now it drains very fast (max 13 hours standby with moderate use).

When I check the battery usage I get:

- 60 % Android-System (is this a lot?)

- 21% Mobile stand-by

- 20% Phone Inactive

- 2% Screen
[Upgrading, Modifying and Unlocking] xaikman:
Anyone tried the LewaOS rom yet? any feedback? thanks!
[Upgrading, Modifying and Unlocking] fcsabika:
Yes I am using Lewa OS and it is very good.
[Upgrading, Modifying and Unlocking] peron:
Very good in what sense? The default is already very good, what's improved?

Does it have many chinese apps like all the other custom roms?
[Upgrading, Modifying and Unlocking] fcsabika:
It is fast, smooth, everything working, whole new user interface, customizable etc.
[Upgrading, Modifying and Unlocking] devilmc:
Sapete se si può eliminare la partizione che divide la rom in 512 mb + 2,5 gb e farla diventare di nuovo interamente 3 gb solo per le app come memoria telefono? in questo modo automaticamente la sd sarà l'unica memoria esterna (col newman n1 ho auvto il problema che la memoria esterna veniva vista quella da 2,5gb e tutte le foto e i download me li metteva li, intasando il telefono e dicendo memoria piena soprattutto quando si scaricavano i giochi).

Hi there guys,

Can the 2,5gb partition be merged to the 512mb space as we did for the newman n1? In order to have one single internal memory all for apps, and to have the SD as the only external memory where automatically all downloads go.

I had the problem that the 512mb for app comes full too soon and many apps cannot be moved to the second 2,5gb space, also got the problem that the 2,5gb was seen as the external memory and downloads (read games) automatically where there and i was out of memory, i had to make the merge partition trick with Newman N1.... i hope someone could make this also with G2S.
[Upgrading, Modifying and Unlocking] fcsabika:
It is 2.5GB for apps by default
[Upgrading, Modifying and Unlocking] devilmc:
on newman n1 it was 512mb PHONE MEMORY

2,5gb INTERNAL MEMORY

SD EXTERNAL MEMORY

The apps go automatically for every phone in the PHONE MEMORY

So, you are telling me that no apps are being automatically installed in the phone memory? Cause android requires many apps to be installed in the phone memory... if the apps go automatically in internal memory as you say (2,5gb) what's the task of the 512mb partition?

Quite confused :D
[Upgrading, Modifying and Unlocking] devilmc:
also i've read of a persistent GPS problem, do you have any suggestion to solve them?
[Upgrading, Modifying and Unlocking] knives69:
I had a gps.conf edited, must be placed in system/etc.

It should be like this:

NTP_SERVER=es.pool.ntp.org

NTP_SERVER=0.es.pool.ntp.org

NTP_SERVER=1.es.pool.ntp.org

NTP_SERVER=2.es.pool.ntp.org

NTP_SERVER=0.europe.pool.ntp.org

NTP_SERVER=1.europe.pool.ntp.org

NTP_SERVER=2.europe.pool.ntp.org

NTP_SERVER=3.europe.pool.ntp.org

XTRA_SERVER_1=http://xtra1.gpsonextra.net/xtra.bin

XTRA_SERVER_2=http://xtra2.gpsonextra.net/xtra.bin

XTRA_SERVER_3=http://xtra3.gpsonextra.net/xtra.bin

SUPL_HOST=supl.google.com

SUPL_PORT=7276

**You should edit es.pool... to your country es=spain

Hope I help you, try it and tell us if solved

EDIT: And you should use GpsFix App to automatically set up the servers. You can use both methods

---------- Post added at 07:57 PM ---------- Previous post was at 07:49 PM ----------

If you have CMW Recovery try to wipe battery stats, HERE
[Upgrading, Modifying and Unlocking] fcsabika:
It is 2.5 gb for apps and no memory for others.
[Upgrading, Modifying and Unlocking] xaikman:
So just a question for Lewa OS rom... To install this do i have to install the lewa recovery first or i can do it through cwm? If i install lewa recovery can i make a full rom - nandroid backup as with cwm? thx!
[Upgrading, Modifying and Unlocking] baniko2:
what about the camera and the picture quality?
[Upgrading, Modifying and Unlocking] thingbreaker:
last time i tried to flash Lewa with my CWM but failed, then i flash using Lewa Recovery and it's work
[Upgrading, Modifying and Unlocking] knives69:
..... my touch screen has broken, do you know any link to buy new one?

Thanks
[Upgrading, Modifying and Unlocking] sdssss:
I don't think that u will find anywhere a replacement screen besides the shop that you originally bought the phone because since this model is very new only the manufacturer will have replacement parts.
[Upgrading, Modifying and Unlocking] knives69:
Yeah I know, can you send me the manufacturer link please, don´t know if it´s ejiayu or jiayumobileshop.

Thanks
[Upgrading, Modifying and Unlocking] sdssss:
sorry don't know either... i bought mine from another shop also!
[Upgrading, Modifying and Unlocking] MetalsTool:
Hi guys!

I'm following this thread for a couple of days because I'm planning to buy that G2S but I have one question more: What about the general build quality? Is it well done?

For example, I would like to know about wifi range, network quality and more especially, call quality. Is the earpiece clear, without noise?

Thank you!
[Upgrading, Modifying and Unlocking] twrock:
I just mailed mine off to Jiayu today.

Here's the information you need:

This is a picture of the back of the box my phone came in.

Line 1, company name in Chinese

Line 2, company name in English

Line 3, address of the company comes after the colon. Note: that address assume you are in China. It doesn't actually have the country in the address.

Line 4, telephone number and then some other number that I'm not sure about. Note: the telephone number assumes you are in China. You would need to dial the country code, and then drop the zero at the beginning.

Line 5, website

Here are the instructions I got from them, but YMMV:

Remove everything that can be before packaging it up. No battery, no back cover, no SIM card or SD card. Just the phone. Pad it up nicely with some bubble wrap.

Include the small booklet that came with the phone when you send it in. (Not the color userguide, but the black and white warranty booklet.) You don' t need to fill anything out, just include it. It has space for them to update that booklet with repair information for future reference.

Include a note with what you want done. (Obviously in your case it will be to replace the screen.)

On that note, you need to include your return mailing address, phone number, & email address.

I also had to include a copy of my receipt/invoice to prove when I had ordered it and received it. But you shouldn't have to do that because you are needing a repair which you will pay for.

Mine is under warranty, so I did not have to give them any information about payment for services. I don't know how you will handle that. I suppose you could ask them to email you with a bill for repairs and information on how to pay them for those services. Sorry, but that just wasn't what I needed to deal with.

I sent mine off "small packet". I was told by the post office that I couldn't mail a battery, so I assured them that the battery had been removed. I did not have to list the value, but maybe that was because I explained that it was broken and had no value until repaired.

Hope that helps. But remember, it might be different for you because of your situation.
[Upgrading, Modifying and Unlocking] twrock:
First, read the first post in this thread if you want to be scared. :)

Other than my two "significant" problems, the phone seemed great.

Compared to my previous smartphone, all of the things you asked about are the same or better.

I really like the metal rim all around. The phone feels solid. the back cover is thin, but it hooks on well. I like the feel of the phone; it doesn't feel like it is going to slip out of my hand at any moment. Compared to the Huawei G300 I'm using at the moment, it feels much nicer to me. (However, it is quite a bit longer than the HW G300, but they have the same size screen.)

If mine didn't have the "jump screen" problem and the slow CPU problem, I'd think it was an awesome phone for the price. Unfortunately, mine does have serious problems, and I won't recommend this phone until I am using one without these problems. :(

As always, YMMV.
[Upgrading, Modifying and Unlocking] MetalsTool:
Thank you for your answer! ;)

I've read all the topic yes, heard about the screen problem, but well...I guess buying now, I'll get phone from another batch, with the latest firmware already so I keep my fingers crossed for that!

In fact, currently I have a Huawei Honor 2 which I'm selling because in my opinion it's a bit too large for me, and I don't need such power, thus I'm looking for the G2S. However, G2S is almost twice as less expensive as Honor 2 that's why I wondered about build quality on basic functions :)

Afterall, my main reference is my Xperia Ray and I would like, at least, such quality and I guess is possible because it's old phone already :) But what you meant with CPU problem?

I wish you good luck for your next G2S so ;)
[Upgrading, Modifying and Unlocking] twrock:
After a couple of days of use, the phone's CPU speed started to drop down to 1.0ghz shortly after booting it (like 1 minute or so) and would not ever return to 1.2ghz no matter what I did. I confirmed this behavior in CPU Spy as well as Set CPU. I had used Set CPU to mess around with the CPU speed, so at first I thought that might be the problem. However, that was before flashing the new rom.

After flashing the newest rom, I got exactly the same results. And this time, I didn't even install Set CPU, so that could not be the problem. So during the initial boot sequence, it would run at 1.2ghz for about 1-2 minutes, but then drop to 1.0ghz or lower, and never go back up to 1.2ghz. So I'm wondering if it has some sort of "self-protection" built-in for if the CPU is getting too hot or something. But this phone's CPU is supposedly made to run at 1.2ghz, so I concluded that it was a hardware problem.

So with the jump screen and the CPU problem, I returned it and have asked them to send me a new one. I hope I will be satisfied with a new phone without any problems. I really liked the phone other than those two problems. I'm using a Hauwei G300 until my JY G2S comes, and I can really feel the difference in how slow it is compared to the JY G2S.
[Upgrading, Modifying and Unlocking] OhljovchO:
Battery saver application not working

Hello

I received last week my G2S and I am very happy with it.

There is however one issue that I can not seem to solve. There is NO working battery saver app, capable of managing 3G data connection for this phone. I have no idea if it is like that for all 2 sim phones. Generally all programs /i have tried over 10/ can not disable data - the letter H stays ON no matter which program or settings inside it, and battery is drained.

I found in JuiceDefender support: "Right now we do not plan to support dual sim phones, sorry"

So please suggest a working tool, if there is one.

Thanks.
[Upgrading, Modifying and Unlocking] MetalsTool:
Hello!

Thank you Twrock for your explanations, it's strange issue indeed, should be hardware as you said! ;) By the way, it didn't give me doubt about that phone so I ordered it from Aliexpress ;) I'll do feedback as soon as I get it!
[Upgrading, Modifying and Unlocking] EAPOCS:
In another german forum about "China smartphones", people with this model also said that it is usually clocked at around 1000Mhz.

So i guess the 1200Mhz is only activated for benchmark if at all...
[Upgrading, Modifying and Unlocking] peron:
The CPU will reach 1.2 GHz when required but most times a lower value is enough to complete the tasks saving some battery.

I'm using the ondemand governor if that makes any difference
[Upgrading, Modifying and Unlocking] xaikman:
Can someone give me a guide on how to root this phone? Thank you!
[Upgrading, Modifying and Unlocking] peron:
The g2s is rooted from factory
[Upgrading, Modifying and Unlocking] twrock:
But this makes no sense to me. In CPU Spy and Set CPU, I can see clearly that it only runs at 1200 during boot and then

never

again will it go above 1000. I've run benchmarks as well, and then there is no increase to the amount of time that the CPU was in 1200 state when comparing before and after the benchmark. It simply doesn't seem to ever go back up beyond 1000. So if it never goes above 1000, how can they say that it is a 1200 mhz CPU? It doesn't make sense to me. Is it being underclocked for some reason?

When I first got the phone, it definitely was running at 1200 for more than just the boot. I ran Antutu and it was something like 7444. But a few days later after I noticed it wasn't running at 1200 anymore, the score was definitely lower as well. (I don't recall how low, but it was still above 7000.)

Oh well, there is a lot I don't understand. But I will see what happens when I get a phone back from Jiayu.
[Upgrading, Modifying and Unlocking] lelepanz:
If it can be usefull here some pictures taken in 3 different location and light condition.
[Upgrading, Modifying and Unlocking] xaikman:
http://www.needrom.com/phone-roms/jiayu/g2s/

thare are some new roms here, anyone tried them?
[Upgrading, Modifying and Unlocking] aladop:
Yesterday I received mine and I am amazed at the quality and the performance of the G2s. Maybe in the near future we'll also get CM...

The CPU speed of 1,2GHZ is always there when needed, so most of the time the cpu speed ranges from 250 to 1001 mhz. I find it clever because it acts as a nice overclocking "on demand" without draining the battery.

Oh and by the way no jump screen problems. I ordered mine from Merimobiles and it came rooted along with a 16GB sd card in three weeks.

Definitely one the best buys in the Android world! :good:
[Upgrading, Modifying and Unlocking] mupton0916:
3G Coverage

Bit of a noob question...

I'm interested in this phone, but will it work with any 3G providers in the US? It seems to only have WCDMA 2100 which means it wouldn't, but the GSM spectrum is fine. Am I missing something? It seems silly for a company to exclude a major audience like America by not putting in a 3G antenna that works here (too common a practice in Chinese phones it seems from looking around a little).

Thanks!
[Upgrading, Modifying and Unlocking] twrock:
I would be very cautious of buying this phone for use in the US. I took my old Huawei U8220 (Pulse) to the US last year and got an AT&T SIM card for it. According to the phone specs and to AT&T themselves, it should have worked. But it would not connect to 3G no matter what we did. I eventually just bought a simple pre-paid phone to get me through, and used my Android phone as a PDA. No point paying the high AT&T rate for service I couldn't use.

You've got to understand that some of these Chinese companies are not targeting the US market in any way. They have a billion+ person market in their own country, and if they can get a good percentage of that market, they will be selling more phones than Apple sells iPhones. So instead little internet companies like the ones on Aliexpress or Etotalk deal with the International market. At least for now.....

If you want a Chinese phone but decent international support, consider Huawei or Lenovo or some other company that is already targeting the international market. And make sure the phone is made for sale in the US. At the moment, Jiayu is definitely not set up to deal with the US market. They don't even have anyone in customer service who can talk to you in English.

Just my $0.02 worth.
[Upgrading, Modifying and Unlocking] mupton0916:
Thanks for the input. I think I might avoid the issue entirely.
[Upgrading, Modifying and Unlocking] aladop:
OK, found a possible weak spot. It's the GPS consistency. After changing the (Chinese) gps.conf to something appropriate for Europe, it finds and connects to 9+ satellites but cannot stay connected. The various apps from the play store didn't help fixing this issue either. The navigation is jerky because the gps receiver keeps connecting and disconnecting randomly. I don't know if it's a radio problem, I wish I could flash another radio but our G2s is a new phone and not as supported as others. Has anyone tried flashing a different radio than the stock that really worked?
[Upgrading, Modifying and Unlocking] peron:
The GPS on this phone is really bad, pretty much everybody have issues with it.

Three issues actually, initial fix, poor antenna and frequent disconnections.

For the first one there are several workarounds, the antenna can be improved with aluminum foil, the third is a deal killer.

Maybe the fix will be in a new rom.

I'm not aware of any alternative radios that can be flashed.

The chip used for GPS is MT6628 different than the one on the G3
[Upgrading, Modifying and Unlocking] StardustOne:
The weakest spot I found so far is the camera flash, this is merely a camera light than a flash. besides from that, the build quality is superb. Plus the camera does not have any Image Stabilizer.

It has really nice high resolution screen with decent color reproduction, actually this screen is much better than the one in my Galayx Nexus. My Galaxy Nexus cannot reproduce White Color, it's just light gray (e.g. when reading Google mail).

The all metal frame makes all the difference, this is not just painted plastic, it's real metal. :)
[Upgrading, Modifying and Unlocking] IvanX9:
Ghost touches the screen using Whatsapp !!

Hello to everybody !

A week ago I recived my Jiayu G2S and everything seems to work perfect ( Compilation nº G2S 20130108-104044 ), don't have problem of the "shakin' touch screen" BUT.....

Have you noticed that when typing messages on Whatsapp for example, sometimes there are jumps in the screen ..... I mean:

When you are writing a message to a contact in whatsapp and suddenly the screen jumps to the contact profile image, as if we pressed the profile photo ... and is usually quite (VERY) annoying, we had written half message and suddenly mobile screen filled with the image of the profile of our contact.

It's as if the touch screen detected where none exist. As touches "ghost"

Someone else happens?

And this problem happens to at least 3 more people in our spanish forum ( with new G2S )

Thank you.
[Upgrading, Modifying and Unlocking] aladop:
Can someone inform us on Lewa? Does it support English? Can it be flashed using CWM? What about play store? Anything else?
[Upgrading, Modifying and Unlocking] petymeg:
Dear G2S's owners!

Is Hungarian language aviable in custom ROMs?

What is the way of rooting of this gadget? I cannot find solution.

What is the quality of G2S? I am planning to have a G2S...

THX.
[Upgrading, Modifying and Unlocking] twrock:
Sorry, I don't have my phone at the moment, so I can't tell you about Hungarian language. I'm sure someone else will respond.

The phone is rooted already.

Regarding the quality, you should read through this thread for some opinions on the quality. Mine had problems, and I had to send it back to Jiayu for replacement.
[Upgrading, Modifying and Unlocking] petymeg:
What problems did you have with it?

I red here and on other forums too that the GPS is weak enough. Slowly finds moons and drops signals continuously. Is that true?

(I do not have PNA, I have been using smartphones as navi for ages so that is a importaint point for me, the strong and stable GPS)
[Upgrading, Modifying and Unlocking] peron:
If GPS is so important for you I strongly recommend against buying this phone.

Go get any other phone not based on mtk chipset and with glonass support.