yashsingh1/xdaforums huggingface dataset:
[Device Reviews and Information] magewick:
Hi guys!

I've got myself a Jiayu G4S a few months ago, and since today I've been having a screen problem. Horizontal and vertical screen lines that doesn't always look the same and in the same place. Also, my Home and Back buttons don't work anymore. Could it be a bad connection between LCD/digitizer and a motherboard, or a bad screen? There is a video of the similar problem on youtube, but since I'm a new user I can't post external links.

Thanks!
[Device Reviews and Information] Ouzo:
I'm not sure, but I'm leaving towards screen damage. I guess you could try examining the motherboard connection, but if it's still under warranty that would void it.

I once damaged my HTC Sensation LCD after dropping it. I had a series of short lines across the screen. The glass was not broken. After searching I discovered a way to 'fix' it. This involved putting it in a small sealed bag (sandwich bag) with a bit of rice to absorb moisture, then putting it in the freezer for 24 hours. You have to remove the battery, SIM and SD card first of course. This fixed the problem for me. My Sensation's screen looked similar to the one in the YouTube video, but didn't go all the way across. It also didn't move around like yours. Also, the capacitive buttons never stored working. Might be worth a try if you're desperate.
[Device Reviews and Information] magewick:
It's not under warranty, I'll send it to a local guy who fixes Jiayu phones and see what' s up. It's weird that capacitive buttons don't work at the same time , since I don't think they are connected (There are digitizers selling on Aliexpress for ~$17, while the screen/digitizer bundle is selling for ~$150.
[Device Reviews and Information] LuxZg:
Hey guys! I've got some good news, well, a start at least. Regarding that Lollipop ROM from Jiayu.de, they've posted a kind of beta as much as I understood on the web. Original FB post is here:

https://www.facebook.com/JiayuDE/posts/838141342973783

(use built-in translate feature)

The link goes to Word document with instructions (in German), and at the end of document there are links to download ROMs for Jiayu G4S and few more models, both for CM 12 and KitKat (in case you need to go back).

CM12 direct link: https://mega.nz/#F!cNdmWLJB!u0K6RdnvPvYwYGuJ0oNMYQ

DISCLAIMER: I have not tried it yet! I'm just downloading it!

Also, you may want to check the original article from Gizchina, and check the discussion (at bottom, by Disqus) between me (Luka) and Sebastian - guy that claims is working for Jiayu.de, you'll see some comments and bickering but in the end what's important is that CM12 is online ;) He kept teasing me that I'll fix their bugs, but I don't care - they've published the ROM. I sure hope it's not just a copy/paste from russian forums :)

Link: http://www.gizchina.com/2015/08/14/...wn-launch-ota-update-app-teases-cm12-devices/

Since I still haven't tried it I can't say much, but if this "beta" of sorts has OTA already enabled that's all we need - all future updates will start appearing OTA. We'll see... When I get time I'll do an update, but that probably won't be at least another week due to lack of time :-/
[Device Reviews and Information] Mbariah:
I've been using the lollipop beta for the past week now and i must say, Lollipop is amazing, despite all its current bugs..Also, the Jiayu.de version runs a bit slower than the version vova.vafin posted on needrom.

The bugs include wifi hotspot, ussd, video record so if. You can live without those then flash

Sent from my CM12.1 Jiayu G4S
[Device Reviews and Information] LuxZg:
Damn... Noone mentioned hotspot being buggy :-/ and unfortunately I need that to work..not often but Murphy says it will be needed if it doesn't work. Please! Keep us updated, I'm really interested in how it goes :)
[Device Reviews and Information] Barquero:
Wi-Fi name in tile

Hi

Can you help me with guide how to add w-fi name in wi-fi tile after connection.

It present on previous RON (422) .
[Device Reviews and Information] Ouzo:
I finally got fed up with the GPS on the G4S, so I bought a Xiaomi Redmi Note 2. Why do I mention this? A) The GPS works which is just, you know, AWESOME! but B) the screen on the G4S is sooooooooooo much nicer. Our little Jiayu has more 'pop', the whites are whiter. The screen is just much better. If only the GPS worked I'd sell the Xiaomi immediately.
[Device Reviews and Information] stu1690:
I used my G4S for work and have not been working recently so it has sat idle for a few months. I went to check on it this morning as I was thinking of upgrading the firmware but it won't switch on.

I thought it may be the battery is flat but it won't charge and my PC won't recognise it even with the battery out!

Any ideas what is wrong or how I can revive it?

Edit

Never mind. The battery was totaly flat.

Doh!
[Device Reviews and Information] Ouzo:
Have you tried leaving it on charge for long? I had a similar thing with my old Galaxy Note 2. For about ten minutes after putting it on charge there was no sign of life at all. Even the charge light wouldn't come on, but eventually it started charging. Keep an eye on it during that time in case it gets hot or something. I can't think of anything else to try.

Edit: actually when I had my G4S apart one time there was a very tiny component on the main board that looked like a mini CMOS battery like in a PC. I've no idea if that is the culprit.
[Device Reviews and Information] stu1690:
The battery was dead mate. Plugged it into the PC again and its charging. Left it for ages on the mains charger and it wouldn't charge but it now seems to be charging through the computer.

I think the charging port is on the way out as i have to wiggle it a bit for the mains to work now.

---------- Post added at 09:19 AM ---------- Previous post was at 09:15 AM ----------

Now that it's charging and not dead.

Are there any good stable builds for the G4S. I am still on stock JB and it has been OK to date but as I am on the latest Lollipop on my main Nexus device I was wondering if KK or Lollipop is any good on the G4S?
[Device Reviews and Information] Ouzo:
I'm still on stock JB too. Maybe read through some of the comments for each ROM in NeedROM and see if anything looks safe. Apart from security issues and the various bugs, I don't mind JB at all.
[Device Reviews and Information] danb1974:
Latest stock kitkat should be fine. I'm running the one before the latest, from jiayu.es (Rom Oficial Jiayu.es 20141101-222444 G4S)

Unless most third party roms, on stock things like hotspot, filming etc. work

Had to root uninstall a few unwanted things (lovelyfonts, sysmarket, change the launcher) since they include code for some chinese app markets but it's surprisingly stable

Also may have to set via build.prop the number of matching digits on phone number (the es rom had the setting already done)

Big fat warning, kitkat changes the touch firmware, you can not revert to jellybean after upgrade (touches would be off)

There is a beta cm12 lollipop being worked on by jiayu.de team, check their facebook page. At this point many things don't work.
[Device Reviews and Information] raccoonest:
It's known that touchscreen won't work correctly after updating from JB to KK, but I'm having a different kind of problem. I managed to break my touchscreen, so I ordered new LCD+touchscreen from Ali and replaced it. After that, I booted up the phone, the LCD was fine, but the touchscreen was completely dead. I was using Chilapos KK rom. Tried other KK roms, stocks and those by TF, but no use. Then I decided to try JB, and wow - the touchscreen was working as it should! Then tried every offical KitKat rom again, but no, it just won't work. Do you have any ideas why the touchscreen firmware won't update itself?
[Device Reviews and Information] Ouzo:
Could it be that the new digitiser is defective? I ordered a new screen assembly for a Nubia Z7 Max recently and the digitiser worked very badly indeed. After a while I disassembled it and discovered that it had been very badly assembled.
[Device Reviews and Information] a123xxsp:
touchscrenn works FINE when updating from JB to KK,

it won't work if you downgrade to JB once you've installed a KK ROM!
[Device Reviews and Information] raccoonest:
Yes, I understand this, but actually I have a bit different case, because my touchscreen won't work with KK at all, but works absolutely fine with JB. So for some reason, the firmware of my new touchscreen won't update when flashing the KK rom - and wondering if someone has any idea what to do about it.

Well, there's definitely something "defective" because the firmware of the touchscreen won't update from JB -> KK. But function-wise, it's working ok - but only with JB. With KK it's completely dead.
[Device Reviews and Information] indiffereddie:
Are there any news about 5.0 version of the rom? Thanks
[Device Reviews and Information] lycanwrath:
I am currently having an issue where my internet connection drops when my phone recovers from sleep.

The wifi connection appears connected but internet connection goes down

Looking around on the net I saw that the issue could be fixed by flashing flashing modem (aka baseband aka radio)

Can anyone help with the this particular proceudre and provide the required files as well?

Same issue, different device:-

https://android.stackexchange.com/q...-although-wi-fi-connected-and-working-well-an
[Device Reviews and Information] Mbariah:
Guys, I need your help..especially if you have ever broken the Jiayu G4S screen or know a thing or two about screen replacement.

So a couple of weeks ago my Jiayu g4s fell to the ceramic floor without its cover and instantly cracked. The single crack runs from the right to left of the screen around the 1/4th of the screen; slightly above the where most launchers display their docks (those icons that don't move with screen).

Problem is, everything below that cracked part is dead...I mean not working. Display is working perfectly but touch doesn't work. This means that I can't use the 3 capacitive keys: Home, Back and Menu and a smal portion of my screen. I've had to resort to raw android survival tactics like using gravity box + rotation control to completely use my phone upside down. YES, I have been using my phone Upside Down for the past 3 weeks or so...with on screen soft buttons to replace the dead ones. You can stop laughing now.

So I was initially going to wait out the MTK Helio x20 for an upgrade, but seeing that that could launch sometime in February/March better by a screen replacement earlier and maybe push for an upgrade around in June.

So my question, in regards to my situation, which do i get? 1. The complete digitizer set ($40) or 2. Just the outer screen ($13)

1. http://www.aliexpress.com/item/Whit...62,searchweb201560_6,searchweb1451318400_6149

2. http://www.aliexpress.com/item/Fron...-mtk6589T-G4S-MTK6592-G4T-HD/32425483329.html
[Device Reviews and Information] raccoonest:
I changed the complete screen+digitizer set and it was fairly simple, it was first time for me to do something like that. I first watched on Youtube some russian guy doing that on some older, but pretty similar Jiayu model. But if you look few posts backwards, I experienced problems with the digitizer firmware and now I'm stuck on Jellybean, because the digitzer firmware won't update to Kitkat.

Changing just the digitizer requires probably a lot more experience to get satisfying result, but I bet it's also doable if you prepare yourself well.
[Device Reviews and Information] Mbariah:
2 Questions:

1. Where you able to use your screen even when it was broken?

2. If you still have the old screen, can the screen be separated from the digitizer?
[Device Reviews and Information] raccoonest:
1. Screen was working still fine after i broke the glass, but the digitizer was completely broken - no touch sensitivity whatsoever.

2. Sorry, don't have it anymore, but I bet it can be separated given enough heat.
[Device Reviews and Information] targa:
Anyone in knowledge of where the vibarion alert is located ?

I opened the phone to clean the camera glass before, but I didn't notice the vibra motor....
[Device Reviews and Information] indiffereddie:
Unofficial CM 12.1 (android lollipop 5.1.1) available for our phone on needrom. Seems like a pretty stable rom.

http://www.needrom.com/download/cyanogenmod-12-1-8/
[Device Reviews and Information] leuk_he:
Yup tried it.

Stable! Security updates until jan 2016 (bye bye stagefright, that a bomb waiting to happen)

-Emei number got empty, but I will get that flashing any rom. fixable

-Second sim cannot be disabled. ( the option is there, but has no effect).

-Video qulity has some issues, and youtube virio restarts after 6 seconds (ok after 6 seconds)

Very unexpected good uprise!
[Device Reviews and Information] TsakosGr:
I want to ask something about this cm 12.1 for this phone

Make a folder with 4-5 apps and lock it with the small icon

After that grab the folder and delete it

And then search the lost apps!!!

Στάλθηκε από το HM NOTE 1W μου χρησιμοποιώντας Tapatalk
[Device Reviews and Information] stu1690:
So today I went to replace the speaker on my g4s and i have broken the power button off of the board. The strip that connects the button to the board has cut n half.

Looks like my phone will be going to its grave shortly as I can't find spare parts for it anywhere!
[Device Reviews and Information] Grippen50:
Anyone else using the CM 12.1 on the G4S? I installed it a couple of days ago. I will stick with it mostly because I like it visually and also because the GPS is working again. It has some bugs, but in my case I didn't loose the IMEI, or have any issues with data on sim 2 as many have reported. issues i found are:

- Auto Bright not working or at least stopped working, seemed to be working until last night but cannot confirm it

- SIM 1 number not recognized and cannot be configured manually but I receive and make calls without problems

- No double tap to wake, this is a limitation not a bug I think. but you have double tap to lock

- USB storage not working very well only one time I managed to access the drives in Windows, yesterday I couldn't one single time and phone rebooted 3 times on the 4 trials I did.
[Device Reviews and Information] Mbariah:
Did you try flashing one of the compatibility patches and kernels by TeamForce that are supposed to fix this issue? They are on NeedRom. Try flashing stock kitkat then the compatibility v3 or v4 ...Tell me how it goes...

http://www.needrom.com/download/compatibility-patch-for-v3-on-jiayu-g4s/
[Device Reviews and Information] daize:
I had kind of the same thing here. I don't know HOW to fix this, but I at least just ordered spare parts (power button) from some ali express shop. Who knows...

It sucks that these phones aren't readily made anymore. They're so awesome.
[Device Reviews and Information] Mbariah:
Has anyone successfully replaced a Jiayu G4S screen and has no issues whatsoever with flashing kitkat or lollipop?

[MENTION=6044107]TsakosGr[/MENTION] Did it work for you? I just ordered a Jiayu G4 screen + digitizer and am curious to see if it will work well....
[Device Reviews and Information] gusyfazos:
I dont know how to eliminate the comment so Im just editing it.

DONT READ
[Device Reviews and Information] Ouzo:
My gut feeling is that the NAND is dead, but I lack the experience to say for sure :(
[Device Reviews and Information] indiffereddie:
There are some flawless Cyanogenmod 13 roms available for this phone. I can send you some links if any of you is still interested :)
[Device Reviews and Information] fxjerzy:
Did you find a solution?
[Device Reviews and Information] Ouzo:
Yeah, a another bug. I've got in the habit of hitting the home key to exit the camera app so that when I go back in the changes I made are still there. With 2GB of RAM this works fairly well.
[Device Reviews and Information] Mbariah:
Hello,am about to pull the trigger on this phone and I was wondering how it compares to the galaxy s4..if anyone would be so kind to post a screenshot of the antutu results against the Galaxy s4..those in antutu benchmark that detail the results..CPU,GPU,ram,e.t.c

Thanks
[Device Reviews and Information] crys2202:
Dptel.
[Device Reviews and Information] mite_jan:
i dont get it how a quad + quad core phone can achieve so much

it is basically using only the 4 cores

the 8 core should overrun it bigtime
[Device Reviews and Information] Ouzo:
The MT6592 only has A7 cores......much slower
[Device Reviews and Information] maxite:
What's up guys? I'm really into buying this phone (migrating from WP8) but I have some prerequisites and I really hope you guys can help me understanding if it fits me. As you know, the best experience is to actually hold the phone and not to view a biased-payed review on Youtube.

1. First and foremost I need a GREAT (no less) battery life. Which means at least a full day [08:00am morning until 02:00am night of same day] (20-40 phone calls, 10-15 mins of WhatsApp + Facebook, about 1 hour of Bluetooth). Will it fit my needs? Is the battery life degrading fast overtime (because cheap Chinese batteries often do that)?

2. I need a good quality speaker (ear speaker) and a decent quality loud speaker. both should be high volume. Also I need people to hear me just fine (high quality microphone). Is that possible with this phone? Have you managed to resolve the "echo bug" that you mentioned before? Are all of the G4S suffering from it?

3. Have you managed to fix the 'speaker noise' before making a sound?

4. GPS, I mostly use Waze, did you try to use it? does it work? is the GPS usable for rare use or it is totally useless? I rarely use it. Maybe twice a month.

5. I have noticed you guys install different ROMs and such. I need to have a Hebrew keyboard which is usually not included by default. Should this intimidate me or will I be able to simply install a Hebrew keyboard app?

6. Do you think it will get KitKat 4.4? BTW, is it possible to flash a default Google ROM (if such exists)?

Overall it seems like a great piece of cheap Chinese alternative to the $700 craziness price tag.

But for me I am really interested in a good Android work-phone. I don't need 3d etc.

I need speed, superb battery, high call quality and good reception.

Should I order one?

Thanks a lot!!!
[Device Reviews and Information] mite_jan:
Yes but 8 slow cores is better than 4 stronger cores

Probably the antutu test is not using the full potential of the 8 cores

---------- Post added at 09:20 PM ---------- Previous post was at 08:27 PM ----------

1. all batteries are made in china even on big brands phones , this phone has great battery life , i saw a test on youtube and ti showed more than 2800mah

2.loudspeaker and interspeaker is fine but you may be dissapointed with the microphone not only with this phone but most of the chinesse phones i owned had someting interfiering to the microphone , but this can be fixed changing the values via software or worst scenario you will have to block the antenna / microphone signal with aluminium or someting

3.i dont know what you mean by this

4.there is a fix also for the gps ,also i want to mention that all mediatek devices have this problem with the gps catching satelites but it is fixable

5.i believe you can find a keyboard app with hebrew support so no problem

6.maybe but i have my doubt , i think it wont get official kitkat but expect ports from another phones with kitkat , it is still early

btw the rom is android , just themed a little here and there like samsung does

overall this is a great phone and with a great community , so you will see lots of custom roms for it but with some bugs here and there
[Device Reviews and Information] Ouzo:
Basically I agree with what mite_Jan said.

Battery life is this phone's strongest point. GPS is the weakest aspect at the moment. Accuracy is an issue for me, even in the countryside, but it does work. Actual time to GPS lock is a little slower than Qualcomm devices, but it's often under thirty seconds for me for a cold lock and much less for a warm/hot lock. The noise (a small hiss) before the external speaker plays a sound has not been fixed yet but you only notice it a tiny bit in quiet surroundings. Call quality is better than my HTC Sensation but it's certainly not comparable to a high end Motorola. Does KitKat really matter? I used it on my tablet for a while and I rolled back to 4.3 so that I could use my SD card how I want :) My tablet has a Tegra 4 SoC and it scores over 35k in Antutu - apart from the GPU, the G4S honestly doesn't feel much slower.

I used a Galaxy S4 for a few days last year (Qualcomm version) and I think the Jiayu holds up well in terms of speed when moving between apps and so on. However, it is slower but by nowhere near as much as you might expect. BUT, the Jiayu is so much cheaper. I honestly don't think it's fair to compare the two. In the UK I can buy a G4S for less than the cost of a replacement screen for a Galaxy S4, nuff said :)

Mite_Jan - we're not comparing apples with apples when talking about these two chipsets. It would be like saying that a V8 engine must be more powerful than a 4 cylinder engine, but it just doesn't work like that because displacement, compression ratio, fuel system, exhaust, valves per cylinder etc all matter. Lol, I digress. The A7 SoC we have has various limitations (including a weak-ish GPU) but that's one of the reasons we have great battery life and partly why our fantastic Jiayu is so cheap :) A while ago I read a comparison between the A7 core and A15, A9 etc and it made it all clear. It might have been on AnandTech. If I find it I'll post a link because it made for interesting reading.
[Device Reviews and Information] Ouzo:
An example of GPS accuracy. This is using Endomondo Pro in open countryside. The G4S lost 0.4 of a mile over a 14.2 mile cycle ride. For me this is on the borderline of what is acceptable. If you are fussy or need accuracy you may be disappointed. I'm ok with it though I'd like it to be better.
[Device Reviews and Information] mite_jan:
i dont know if adding this line in the build.prop will make it more acurate

i remember on mtk6589 there was a problem with gps and apps like endomondo

dalvik.vm.execution-mode=int:fast

source

http://xdaforums.com/showthread.php?t=2431933

i know that gps is inacurate with other socs too
[Device Reviews and Information] maxite:
Alright guys, thanks for the answers.

So I guess we can handle most known issues (GPS, Facebook app etc).

Can you rate these from 1 to 5:

1. Speakers Quality (Ear Speaker + Loud Speaker)

2. Speakers Volume (Ear Speaker + Loud Speaker)

3. Reception

4. Microphone Quality - When on Loud Speaker mode (Only if known, If it's bad or extremely good your friends will probably notice it)

5. Microphone Quality - When on Ear Speaker mode (Only if known, If it's bad or extremely good your friends will probably notice it)

6. Overall feeling

And 2 more questions:

1. Would you buy this again as a work phone?

2. Is the 'echo' problem actually easily fixable? do you notice the 'echo bug' on each call or is rarely heard?

Thanks a lot! I can't wait for your answers and order it.
[Device Reviews and Information] anandus:
I find the sound quality very good, no problem at all.

And about the volume: The phone can be loud, VERY loud, when you turn up the volume.

I can't say anything about the microphone quality, but the build quality is excellent, it feels very solid and has a good sturdy feel. I've dropped it a few times (I'm an idiot), but that didn't do anything.

The overall feeling, from my experience, is very good, excellent value for money and to me it feels like an AAA-phone.

And the battery life is excellent, it amazes me. I'm a hefty smartphone user, but I can easily go through the day. As a comparison, with my last phone, an HTC Desire HD, I always carried two spare batteries which I'd switch during the day. My wife can go a full week with the phone (I also bought her one after I got mine).
[Device Reviews and Information] maxite:
Thanks

1. Do you experience the 'echo' problem people are talking about? Is there a way to really fix it forever?

2. Is caller ID bug fixed?

Thanks