yashsingh1/xdaforums huggingface dataset:
[Device Reviews and Information] krycha20:
Jiayu G4S

Hi, please help. I have a problem with Jiayu G4S. Soft changed from 4.2.2 to 4.4.2 and I deleted the IMEI, I tried to manually upload the code * # 4634 #, but to no avail. Is there any other possibility to be repaired? Sorry for my language, I'm Polish and Im sorry I don't now english very well.
[Device Reviews and Information] Ouzo:
I am not 100% sure. Have you tried flashing the full factory 4.2.2 ROM using SPFlashTools from a computer?
[Device Reviews and Information] krycha20:
I have not tried, I read that you can not go back. I'll try to do it now
[Device Reviews and Information] Ouzo:
Before you try, search Chinaphonearena for a solution. Jiayu is not the only phone to suffer this problem. At some point I read about how to get the IMEI back. The answer is out there, I just can't remember where.

You can downgrade to Jelly Bean if you flash the Team Force Kernel over on NeedROM.
[Device Reviews and Information] krycha20:
I could not upload, pops up an error, it is possible that I am doing something wrong

ok, look for, but can be hard. I do not know English well :( a dictionary is not always well explained
[Device Reviews and Information] Ouzo:
Look at tutorial on Gizbeat.com for SPFlashtools. There are also tutorials are on YouTube by the same person.

http://www.gizbeat.com/7102/newest-sp-flash-tool-for-mtk6752-mtk6732-sp-flash-tool-v5-1452/
[Device Reviews and Information] krycha20:
thank you very much :) it worked. Greetings from Poland: D
[Device Reviews and Information] Ouzo:
Awesome, well done :)
[Device Reviews and Information] lycanwrath:
Hello,

I am currently on the Chilapos ROM and I am finding that there is no way to edit contacts on the phone once they are created.

It appears that the G4S uses an App named people as opposed to the Contacts App which is present on other Android phones.

Is that same for all G4S users?
[Device Reviews and Information] Ouzo:
On the stock Jelly Bean ROM from April 14, I have a People app. I can edit contacts (I store mine in the phone, not on Google's servers though).
[Device Reviews and Information] lycanwrath:
I store my contacts with my google account.

Not being able to edit or delete a contact from my phone is quite a hindrance.
[Device Reviews and Information] aeriko7475:
Me too.. i have chilapos ROM and i can edit, add, erase contacts whenever i want.. I haven't any problem with it..

A question from me: I installed xposed frameworks and gravity box in chilapos ROM but gravity box didn't make any changes that i downloaded from modules.. Is there anything that i missing? I just want to change the icons of signal on the notification bar with others with color.. How i can do it?
[Device Reviews and Information] lycanwrath:
I figured out how to Edit and Delete contacts, thanks for making me have a better look at it guys ;)
[Device Reviews and Information] fjorger:
Hello,

I can tell you that my experience (one of the first Jiayu G4S units) I tried 4.4.2 if I activate the wake up function and the phone goes to sleep, then I cannot recover it again (power switch) turn's it on, but the Touch does not respond at all.

Time to take out the battery go to the settings page before the phone sleeps again...

Anyone with the same problem?

For now I'm just keeping the option off.

Regards,

FJorgeR.
[Device Reviews and Information] Baddhet:
Good smartphone!
[Device Reviews and Information] Ouzo:
Brilliant for the money. It's just a shame the GPS is poor. I'd like Jiayu to upgrade it to the newer SoC and re-release. I wouldn't mind a five inch version either.
[Device Reviews and Information] LuxZg:
Like some others I've also used phone almost since day one without protector or rubber case or anything else. Been dropping it down the stairwell few times, on asphalt road, etc... No scratches on screen, nothing noticable anyway. Edges of the case did get some dents but nothing serious. Worst thing is that rear panel / case cover started tobbe flimsy from all the kicks and falls so it started to reboot when I'd throw it on a bed or table. So I started using silicon case that came with phone and it holds it in one piece :D anyway, I've really abused this phone and I can say it's as durable or even better than some way more expensive brands.

There are 2 things Jiayu needs to fix: GPS (Ive stopped even trying, I use 2nd cheap phone just for GPS tracking/navigation) and that dust that gets under camera lens.. Thoughhow many times mine dropped on the floor or road I can't really blame them for dust under cover.. :)

I've been looking at newer Jiayu phones, something with better GPS, as I do need that often, but I think I'll actually switch to Windows Phone this year so maybe next Jiayu never happens. But it's good phone for what I've paid for it!
[Device Reviews and Information] Ouzo:
I couldn't agree more.

If you undo the eight screws on the rear of the phone you can remover the cover (careful of the sticky tape near the SIM slots) and blow dust out of the lenses. The front camera can be gently lifted without unplugging it to clean the back of that lenses too.
[Device Reviews and Information] LuxZg:
Yeah I thought about it, just need to get some time :)
[Device Reviews and Information] Ouzo:
It's fairly easy once you've done it once. In addition to the sticky tape near the SIM slots, beware the little clips along the side of the frame adjacent to the battery where the cover is very thin and flimsy. I nearly broke mine then had trouble clicking them back into place when reassembling the phone (it creaked for a while until I realised how to relocate the clips).

I rode over mine on my mountain bike the other day when the case fell off my handlebars. Looks like I got away with it.

Check out the specs for the jiayu S4 on Gizchina. Looks like an improvement on ours in perhaps all but battery (and screen res stays the same which doesnt bother me)
[Device Reviews and Information] LuxZg:
Actually that's exact model I was looking at, looks like a beast :) some also say GPS is working fine but I'm still waiting...

As for dust, thanks for all the details, I'll have a look! ;)
[Device Reviews and Information] pozzeco:
GPS solution?

Do you understand what they did?

http://www.android-hilfe.de/jiayu-g4s-forum/671817-g4s-endlich-gps-problem-geloest.html

[IMG="GPS antenna"]http://s21.postimg.org/f9hsf8vxi/GPS_pagerinimas_antena.jpg[/IMG]
[Device Reviews and Information] Ouzo:
I can't tell if that is two pieces of wire, or one. I think the length of the wire wire will be really important (something about the wavelength of the signal). Also, when I tried copper foil, I made the GPS a little better but my Wi-Fi worse.
[Device Reviews and Information] pozzeco:
I think it's two pieces (4 mm of each).

He wrote:

"Lid back on, the top center, the antenna can be seen, a black film. The can gently lift slightly from the right, one sees the two traces.

Then I found after several attempts, the (obtained from a flexible wire, approx 4cm long, pure copper) brings a single core the best results. Simply a wire below the lower interconnect and set a below the inner conductor loose. Coming in from the inner track must go up, so he does not short the bottom.

Then press sheet again, the small contact is easily sufficient.

Then possibly fix the wire about 4 cm in small loops on top of the foil with small Klebestreifenstückchen.

Wires should not touch each other.

If the loops are laid greater than the film with me it does not bring anything more, only on the size of the film, it brings me success. I do not know why. Have been using GPS TEST found this setting."
[Device Reviews and Information] skinkken:
My Jiayu G4S camera has probably broken. It's focus doesn't work right anymore. It focuses too close to the object and the picture gets blurry. Close up pics are working if I take the pic at the closest possible focus distance. If I want to take a picture of something like 30cm away, I either have to focus behind the object of first focus, then move the phone closer and quickly take the pic before the auto focus messes it up. But sometimes pics at 0.5-5m range work almost perfectly, but rarely. Scenery pics are impossible. I have had the phone for a year and have dropped it like 5 times, but I don't remember the camera would have been broken after a specific drop. I don't think it's about the dust, as it just suddently stopped working, not gradually. I have reboot the phone many times, not working. I have had this problem for a month now. I think it's hardware problem.

There are dealers selling spare rear cameras for $30-35, would it be good idea to buy one? http://www.aliexpress.com/store/pro...4-G4C-G4S-back-camera/401461_32309075832.html

Any other ideas?
[Device Reviews and Information] pozzeco:
Mine not charging anymore. Sometimes only charging, when i power off phone. Computer doesn't sees phone. In Deep Sleep quickly discharging. Do you have similar problems?
[Device Reviews and Information] Ouzo:
Sorry, mine does not have that problem. It sounds like your micro USB port is damaged.
[Device Reviews and Information] pozzeco:
But if USB port would be damaged, how it charging when i power off phone?
[Device Reviews and Information] Ouzo:
Good point. I guess you could try a factory reset, but I've no idea if that would work.
[Device Reviews and Information] pozzeco:
Problem still is, that i couldn't connect my phone to PC. And i have problems with charging.

Now i found, that USB tethtering is not active, even i connect PC cable.

[IMG="USB"]https://dl-web.dropbox.com/get/Screenshot_2015-05-26-08-10-23.png?_subject_uid=222551439&w=AABWSD41PkFj6JHyx5j8to8x1ukmYia6YoYopMVw_qsfIQ[/IMG]

Charging is working, if i go To Mobile Uncle tools, USB If test, Enable Vbus, Start. Then push back, back, exit program. And it's charging, till i restart phone.

[IMG="Charging"]https://dl-web.dropbox.com/get/Screenshot_2015-05-26-08-13-03.png?_subject_uid=222551439&w=AABRDiqa-x6JFPVWk272H5ALswTyu-t1xoh2Nr1AUtW1aw[/IMG]

Yesterday i did factory reset. It didn't helped. I think i should try to change USB port board.
[Device Reviews and Information] zdc:
Lost storage?

Hello,

I've recently upgraded my G4S to Salamander ROM (android 4.4.4), but it seems I lost the internal (system?) storage. As we can see in the screenshots, in the Storage section I have Phone Memory and SD card. Before the upgrade, I had three storage "views": phone storage, internal memory and sd card (ok, maybe the names weren't exactly this...).

In the Apps screenshot, we can see that "Internal Storage" is down to 388 MB, even though, on the previous image, the phone storage had 4.66GB free. I can't move apps to the sd card because it says something like "can't move app as phone memory is the same as internal memory".

The previous ROM I was using had everything ok, so I think this is just a matter of configuration. Does someone have any suggestion to fix this? I've tried the Salamander ROM's creator forum, but no reply whatsoever.

Cheers!
[Device Reviews and Information] Ouzo:
What ROM were you using before? Did you go straight from Jelly Bean to KK? If so, I think you need to flash the stock KK first to set the partitions correctly. Other than that I'm not sure...

.
[Device Reviews and Information] zdc:
I was on "(4.4.2)Rom Oficial Jiayu.es 20141101-222444 G4S", which is based on the official stock rom.

I compared both zip files, and found that they have a small difference here:

Salamander:

<permission name="android.permission.WRITE_EXTERNAL_STORAGE" >
<group gid="sdcard_r" />
<group gid="sdcard_rw" />
[COLOR="Red"] <group gid="media_rw" />[/COLOR]
</permission>
<permission name="android.permission.WRITE_MEDIA_STORAGE" >
[COLOR="Red"] <group gid="sdcard_rw" />[/COLOR]
<group gid="media_rw" />
</permission>

Previous rom:

<permission name="android.permission.WRITE_EXTERNAL_STORAGE" >
<group gid="sdcard_r" />
<group gid="sdcard_rw" />
</permission>
<permission name="android.permission.WRITE_MEDIA_STORAGE" >
<group gid="media_rw" />
</permission>

Could this be the cause?
[Device Reviews and Information] Ouzo:
I think it just relates to the SD card write restrictions in KitKat and trying to circumvent them.
[Device Reviews and Information] pratikmore:
Anyone tried to port cm12 from here

http://xdaforums.com/showthread.php?t=3119908

[ROM][5.0.2] CyanogenMod 12 for Kingzone K1 Turbo
[Device Reviews and Information] Mbariah:
Hi everyone, I just uploaded a new custom rom for the Jiayu G4S (based on Huawei's EMUI 3.0 ) . I promise it will be well worth checking it out.

NeedRom Link

Hope you enjoy it..
[Device Reviews and Information] danb1974:
I am almost sure that my g4s does not want to user more than 1GB of ram. No matter how many apps I go through, free memory stays on the 0.92GB - 0.95GB range (from a total of 1.92GB) - as observed in the task manager window, which also shows which apps are still in memory.

That's a bit frustrating, because the delay when launching an non-ram-cached app is noticeable

Using jiayu.es 20141101 rom which is based on 20141022 rom

If there is anything I can do (phone is rooted so I can edit build.prop for example), please let me know
[Device Reviews and Information] Ouzo:
Hi, I'm not sure. Try a general search of XDA and see if there is any advice regarding RAM tweaks that will adjust how much Android OS keeps open before clearing background apps and processes.
[Device Reviews and Information] Mbariah:
You can try installing the ROM directly above your post..EMUI 3.0..it uses as much ram as possible to ensure apps you selected remain in ram as long as you want..View attachment 3392755

See pic..currently only 500mb is free with about 10 apps loaded
[Device Reviews and Information] danb1974:
I prefer to stay on stock rom, it's really stable and everything works as good (or bad, like the gps) as expected

Does android have some option that can artificially limit total memory usage (not per-app memory usage, like dalvim vm heap size)?
[Device Reviews and Information] Mbariah:
Not sure but Android has some options under Developer options that you can use to set no. max of apps you want running in background processes limit
[Device Reviews and Information] danb1974:
Under developer options you can set that limit to default, 0, 1, 2, 3, 4. I want to set it to a high value or unlimited. I want inactive cached programs to be evicted from memory only in low memory conditions - that's why I have 2GB of ram, to use them.

Android may also do this eviction based on some timeout, but I was not able yet to find documentation over this matter.

Also, phone seems to refuse to keep in memory more than 12-13 apps, if I open one, another gets evicted, despite having more than 1GB of ram free.
[Device Reviews and Information] a123xxsp:
Hi, I have exactly the same problem. (G4S 2GB, only 1GB Ram is used), I suppose there is something wrong with our rom, maybe is was based on the 1GB Ram version and somehow it is looking in using only 1GB,

if you find any solution please post it here.
[Device Reviews and Information] danb1974:
Progress so far...

(There is 2GB of ram as seen by the kernel, connect with adb shell and run su then cat /proc/meminfo to see for yourself)

Took an app from the net, that lets me set a higher limit for background process number. App is very basic, does only that, source code is public, so I could modify it's menu for high values (like 100), original is harcoded to 0, 1,2 up to 7. Not sure, seems a bit more inactive apps are cached in memory.

Had a look from adb shell, I have a great deal of "lost ram" (as shown by dumpsys meminfo), as much as 200-500mb. After boot it's only 30mb but it grows fast. That means usable memory can go as low as 1.5GB. Not sure who eats that memory, there is no debugfs under /d/ion/, bad or hungry display driver?

Also kernel swappiness was set to 100 in rc.init, I set it to 0 (why rush to swap when there is so much ram?)

Still, task manager keeps showing around 1GB free ram, even with lots of inactive apps
[Device Reviews and Information] LuxZg:
Interesting topic. Just did a test and most I could get to was 15 apps while I still had 1GB free. I'm still on the latest official Jelly Bean ROM, no mods on it. I've never put much mind to this, but it does seem weird. Could you share the app with which you've increased the app limit? Perhaps - already built app with that 100 app limit
[Device Reviews and Information] danb1974:
The app is hosted on github here https://github.com/flode/SetAndroidProcessLimit, the apk download link is https://github.com/flode/SetAndroidProcessLimit/blob/master/de.florian.processlimit.apk?raw=true

You have to download the apk on the phone, enable installation from unknown sources then open the apk on the phone. The author was kind enough to modify the app to include higher limits.

Does not seem to make much difference, just a few more cached apps. Still frequently used stuff, like mail, gets thrown out of memory periodically.

Free memory is a bit misleading, it also includes used memory that can be freed, like buffers and cache. Still, a dumpsys meminfo shows I have 0.5GB of free as in completely unused memory

What I would like to find out, besides oomkiller's minfree low memory limit, what else decides when inactive apps get evicted from ram

Total RAM: 2016644 kB
Free RAM: 883420 kB (230000 cached pss + 131652 cached + 521768 free)
Used RAM: 852001 kB (805401 used pss + 1684 buffers + 8972 shmem + 35944 slab)
Lost RAM: 281223 kB
ZRAM: 4 kB physical used for 0 kB in swap (0 kB total swap)
Tuning: 256 (large 512), oom 122880 kB, restore limit 40960 kB (high-end-gfx)
[Device Reviews and Information] danb1974:
Had a look into android source code (4.4.2 KOT49H). Welcome to the misery of hardcoded constants... in ProcessList.java we have

// The maximum number of cached processes we will keep around before killing them.

static final int MAX_CACHED_APPS = 24;

Which is the further split by computeEmptyProcessLimit into: 2/3 of this goes to empty apps, rest of 1/3 goes to cached apps

Good thing we got memory... too bad it remains empty because of this. Go buy a 4GB phone and weep (did they fix this in lollipop?)

At least CM11 allows you to set this limit via build.prop... but stock does not.

Now, this value and the ones derived from it are used in ActivityManagerService.java to determine when to kill stuff. Good thing, the actual mProcessLimit variable, which is initialized with MAX_CACHED_APPS, can be changed via setProcessLimit call (what that little app which I mentioned does). Bad thing, doesn't seem to have much effect, possibly because a bunch of other stuff is precomputed directly from MAX_CACHED_APPS and not from the new mProcessLimit.

Next it seems I'll have to decompile and patch the actual services.jar from the phone, to raise that limit. I hate to do that. But I also hate when even the dialer gets kicked out of memory, despite having over 500MB free at any time.
[Device Reviews and Information] danb1974:
Tried to patch (decompile to smali + modify in the smali + recompile) services.jar to set MAX_CACHED_APPS to 100, replaced the jar on the phone, rebooted, no improvement. Android figured out by itself that it should rebuild dalvik cache and so it did.

Now I'm a bit confused.
[Device Reviews and Information] danb1974:
So... with flode's SetProcessLimit application, which has to be manually copied into /system/priv-app (use a root browser that knows how to remount /system readwrite or do adb magic) and NOT installed via apk manager (permissions related story), the process limit can be set to high values and the phone will now happily keep more inactive apps in memory (I have around 20 or so now) and every one will start instantly from the second run, giving you still have some free memory

Still not figured out why editing services.jar did not work

Oh, free memory as reported by task manager or other apps do not count thouse cached apps, so it will always be around 1GB. But if you adb shell then cat /proc/meminfo or dumpsys meminfo you will see the actual free memory (free, cached and buffers count as free).
[Device Reviews and Information] danb1974:
And figured out how to properly edit services.jar. When you edit a smali file and change a constant... you have to change the value in every place that constant is used, not only in the declaration. It's best to have the java source code to that file, to see exactly at which line numbers you have to make the changes.
[Device Reviews and Information] targa:
Hi,

I did almost the same and have the same issue. Didn't exactly realize when vibration stopped working though, since the vibration imbalance is anyway so low I hardly recognize it in my pocket. So this could be a SW issue, right ?

Didnt find anything on G4S on Needrom, only on G4 ?!

Anyknow ones whether there's some feedback ie. in logcat on vibration ?
[Device Reviews and Information] Mbariah:
Great News everyone...Official lollipop is coming, and from Jiayu themselves soon.Here for more..and yes the G4S is definitely getting an upgrade
[Device Reviews and Information] Ouzo:
Here's hoping it's bug free for once....and malware free too.
[Device Reviews and Information] Mbariah:
More news on the Upcoming Cyanogenmod 12.1 update..

GOOD NEWS

So I pushed one of the guys at Jiayu and this is what he responded when asked about the JiayuG4S upate date...

quoted "The OTA update process will be done directly from the app. without any flash. just -over the air-

Our SW engineer told me right now the Cyanogenmod 12.1 Versions will be available in September after he is back from holiday."

He also told me that they'd post a video up first.

Frankly, I find it hard to believe that you can upgrade directly via an app straight from Stock Kitkat to Lollipop, much less Cyanogenmod 12.1.

NOW FOR THE BAD NEWS

Its NOT FREE:(...at least not for everyone. Yes, Jiayu is actually selling the Cyanogenmod update for 29euro per person. They claim that the updates are not from Jiayu but from Jiayu Germany, hence we are not getting an official stock lollipop but a cyanogenmod one. It's only free if you bought the phone from them Jiayu Deutschland and nowehere else.

Hopefully someone will backup then post it online :fingers-crossed:

Would love to hear your thoughts on this...

[IMG="Jiayu g4s cyanogenmod 12.1"]https://scontent-cdg2-1.xx.fbcdn.net/hphotos-xtp1/v/t1.0-9/11755783_830423673745550_6836055471094829839_n.jpg?oh=ff192fad18b7cbc8ce32e9989787f1b3&oe=563FD3B1[/IMG]
[Device Reviews and Information] Ouzo:
Given that the GPS will not work properly no matter what ROM we put on the G4S, I doubt I'd be willing to cough up 29€. I'd honestly rather put the money towards my next phone. I'd like a new Jiayu with a Helio X10 chipset, a five inch screen with a device width of 67.5 mm and s removable battery and exfat compatible micro SD card slot.....
[Device Reviews and Information] LuxZg:
I'm with Ouzo on this. These are my exact wishes.. I'd just add a rear (main) camera less prone to getting dirt inside between lens and protective glass. Everything else can stay as was on G4S. I wouldn't mind 3GB RAM as it's becoming default in this category.
[Device Reviews and Information] Darkside1984:
In needrom.com there 's a Cyanogen rom with Lollipop...
[Device Reviews and Information] LuxZg:
Thanks. By reading comments its still a bit work in progress , but nice to see it running.
[Device Reviews and Information] Ouzo:
To be honest, there are a few things I would change, like a better camera sensor that doesn't let dust in, as you say. If it had a 5" screen I'd like full HD too. I'd also like backlit buttons as well as I miss having them. If I was going to be really greedy it would be nice to have all the features and widgets that I had on my HTC Sensation from a few years ago.

It would be great to keep a 6-8 hour screen time though as well as an LCD panel with crisp whites like we have now. My girlfriend's last two phones (Z7 Max and Oppo Find 7a) produce really yellowy whites. The G4S has a much nicer screen.
[Device Reviews and Information] Mbariah:
http://4pda.ru/forum/index.php?showtopic=684988&st=0#entry42327010

Dat russian...anyway JiayuG4S Lollipop thread..beta version at the moment