yashsingh1/xdaforums huggingface dataset:
[JiaYu S3 Questions & Answers] lolemenos:
Its the password protection in case someone steals your device. I think upgrading to lollipop will fix this but I am not 100% sure. Try the latest dragon's ROM. Works like a charm.
[JiaYu S3 Questions & Answers] superdragonpt:
Hi

Well rumours seems to be true, Jiayu was bouhgt by another Company (Huge Player on the Chinese/world Mobile Industry), Lets wait for official Press Release ...

It was expected to be released two new LP builds (NewUI/ Regular AOSP Based LP) 3 days ago, lets see if the Mother house releases them this week.

Seems China's crazy stockMarket, plus, all the chinese government recent policies, lead to Bankruptcy of several Players in this industry ...

Lets see

Cheers
[JiaYu S3 Questions & Answers] buby93:
i know it's the security password. The problem is tha't I've NEVER IN MY LIFE set a security password. I think the device unlocked in my pocket and did it all by itself... i know it is quite impossible but it's the only explanation.

Please can you give me some precise instruction to install superdragonpt ROM? I don't know all the things of MTK DRIVERS and how to flash with flashtool!

Please help me take back this device :)
[JiaYu S3 Questions & Answers] albin88:
Try login to google play website and there set new password to unlock device. Maybe it will work

Wysłane z mojego JY-S3 przy użyciu Tapatalka
[JiaYu S3 Questions & Answers] superdragonpt:
Try this :

https://support.google.com/playedition/answer/3388218?hl=en

cheers
[JiaYu S3 Questions & Answers] buby93:
As i said in the first post, I WIPED ALL DATA AND SYSTEM, so the only thing to do is to flash a new ROM (I think)!

Can you tell me how to flash your ROM since i don't know how to use flashtool? Or I can use also my device recovery? (i have TWRP)

Thanks :)
[JiaYu S3 Questions & Answers] panste:
check this guide to understand how flashtool works

http://xdaforums.com/showthread.php?t=1982587

it covers the basic ( be carefull to install the appropriate drivers before runing flash tool)

if you used KK before and going to lolipop select Firmware Upgrade

if you had LL before select download (options appear in the newer version of flashtool just below the scatter loading file text box)
[JiaYu S3 Questions & Answers] buby93:
Thanks, but i still don't know what MTK DRIVERS are and how to install them on my pc. Would you be so kind to explain me pls? :)

---------- Post added at 08:44 AM ---------- Previous post was at 08:28 AM ----------

I installed the AOSP ROM from NeedRom, after performing Data, Cache, Dalvik and System WIPE and this lockscreen IS STILL THERE. I really don't know what to do. Plus, I tryed to follow the instruction that [MENTION=5238428]superdragonpt[/MENTION] linked me in the previous post, but when I type the wrong PIN too much times no "Forgot Pattern" appear on the screen so I can't use my Google Account to unlock the device.

What can I do?
[JiaYu S3 Questions & Answers] justnewsp:
Just to be sure, post a picture of the password screen.
[JiaYu S3 Questions & Answers] buby93:
Here they are
[JiaYu S3 Questions & Answers] justnewsp:
The solution, it seems, is to flash Stock ROM, not modified ROM.

And yes, flash using SP Flash Tool

You can find original ROMs at www.needrom.com

Choose one for your model 2 or 3 Gb, probably Chinese version (you said you bought from jiayu store).

Read messages back, there are lots of instructions.

Or wait for someone to give you wxact links and tutorials.
[JiaYu S3 Questions & Answers] buby93:
Anyone has any idea of what can I do? Please, every tip is well accepted :)
[JiaYu S3 Questions & Answers] stanstevo:
If I'm not mistaken, it appears as if ur on lollipop already, if so, follow the same procedure u did to install ur present rom, otherwise just search and download mtk drivers the rest is self explanatory, actually there r numerous tutorials through out the Web on how to do it

Sent from my JY-S3
[JiaYu S3 Questions & Answers] buby93:
Nope man , I am on AOSP ROM from needrom and as i said before, i don't know how to install these drivers. And also if i knew how would it help me to solve my problem? I said i WIPED data, cache, dalvik and system and the lockscreen is still here. It's a cancer xD

Please let me understand what you are suggesting :)
[JiaYu S3 Questions & Answers] justnewsp:
Have you tried a simple google search ?!

http://singledrivers.blogspot.ro/2015/03/jiayu-s3-4g-lte-usb-driver-for-windows.html
[JiaYu S3 Questions & Answers] Levered:
Here statement from official, Jiayu China.
[JiaYu S3 Questions & Answers] Levered:
I've post official statement.
[JiaYu S3 Questions & Answers] RalphMalph:
Thanx guys, i'm not sure yet if this is good or bad for us Jiayu-users. My first intuition is good. Hope we will see really soon also new roms and they will not stop or pause the development.
[JiaYu S3 Questions & Answers] superdragonpt:
Yes.

I was waiting for Official Press Release ...

( It wasn't up to me, to speak about this matter. )

What the users should know, is that now Jiayu Belongs To a bigger group, among the group there's VANZOTEC.

VanzoTec is the original Phone manufacturer for Jiayu / iOcean / ZOPO , etc Brands (brands = OEM's)

This is an win-win situation for the users.

They are the ones that have r&d departments, so for the users this is actually good.

I feel sorry for the Jiayu Brand, and all the employees that will loose/lost their Job, and for all the Official Stores across the world.

hope they managed to survive and get another job :eek:

Best Regards

César.
[JiaYu S3 Questions & Answers] van_gogh:
Finally I was able to download MTK MT6752 datasheet from http://wenku.baidu.com/

Here it is - https://mega.nz/#!n9I0jADQ!LM3tPFl5POfDQMpXXz4YTniIq5fW4r4eOoETw8VPGZY

Could someone please tell me which chip is responsible for Wifi+Bluetooth.

Thank you in advance!
[JiaYu S3 Questions & Answers] nggies:
Thanks for the information, but I thinks all employees and others will stay just got offering new contract for new brand of their company. Like others when unified/take over.
[JiaYu S3 Questions & Answers] buby93:
Guys can someone explain me how to install the drivers of this phone? I tryed to follow the explanation in this video

https://youtu.be/ztI8sc8MUNo

but my device cannot be recognised when i plug it in the USB
[JiaYu S3 Questions & Answers] lolemenos:
Thinking of jiayu s3 still being kinda 'new' phone since we do see more 6752 devices showing up I think we could get an official 5.1. Anyways I am really waiting for their next move hoping we get some support.
[JiaYu S3 Questions & Answers] Komagain:
You can take a look at

bbs.elephone.hk/thread-1037-1-1.html#.VaeuD_BiNkU
[JiaYu S3 Questions & Answers] Bantryred:
@ buby93

Try removing the SIM and booting up without it
[JiaYu S3 Questions & Answers] Daniel2255:
Tsunami V8 ROM

Hi! I installed TWRP, all data wiped but not sd card, done factory reset, but there was some ".. boot load" error, then I force check MD5 check sum ROM and installed V.8 TSUNAMI ROM I phone turned on, It have taken around three minutes, then I put pin for sim card, then I press ok for that sim card to be active, message Appear That I Should not touch my phone, and self phone will reboot when it will finish, I Waited 10 minutes and no reboot. . Then I rebooted him my self ask me again and after that nothing happen, it just tell me that phone works don't do a thing, it will reboot, thing that never happen.

Now about my experience with Tsunami: with Dolby sound headset is better, but is still very bad speaker sound, same as on my KitKat. Call quality is better, but camera Have same problems in medium and low light condition, any indoor photos are useless, They are like a mosaic painting or something, same on KitKat and I can not use 13 MPx (16: 9) option, overall I do not feel any upgrade in comparison with Latest chinese kitkat rom but call quality. I am dissapointed, I was hoping that this rom can stop me from selling phone, and it keep saying same thing do not touch With phone at every reboot! Help please :)
[JiaYu S3 Questions & Answers] sarge246:
I was in your position 2 weeks ago .Having to learn when my device came with no imei

For me the best place to learn was YouTube tutorials .Written text went over my head.

So look at install com drivers,splash tool & mtk droid tools.Pick put the ones you are most comfortable with. Once you've installed what's needed I watched further tutorials on install using splash tool.

That method worked best for me.
[JiaYu S3 Questions & Answers] Aussie_Oddball:
HI,

I have attached a folder with the folder and all the files I used. In windows goto control panel, device manger, USB and check that your laptop can recognize the J3. I used the Vcom USB driver. If you laptop doesn't recognise the phone. You need to load the drivers into windows. Different drivers different operating systems. In terms of the flash tool watch this video. https://www.youtube.com/watch?v=UuCLBPTHmBk

The English isn't great but you'll get the picture. The key piece of information is that the phone is switched off when flashing. The key thing is to get your laptop recognizing the phone, the flash won't woke unless it does.

Get the official roms from needrom and then Robert is your fathers bother

hope this helps
[JiaYu S3 Questions & Answers] uptowner:
better off asking on movilesdualsim where that rom is from used them myself with roms for past phones they are very good trouble is even using google translate i do not always understand what they are trying to say some words or expressions seem to translate into gobbledegook
[JiaYu S3 Questions & Answers] hariklis:
I don't really know if this will help you. I was in the exact same position with you in March. Like you, I was certain that I had never inserted a security code. I made a factory reset but this screen was there again. I managed to control my self and make no bigger harm to the system. For 2 days I was trying passwords and finally... It was unlocked. The password that unlocked it was one that I rarely use it as password. But it is so unique, that it is 100% certain that I had inserted it.
[JiaYu S3 Questions & Answers] aszu:
Wow, latest Tsunami V8 ROM is amazing. Bluetooth issues fixed and *MIRAVISION SUPPORT!!! (finally)*

To those with 13Mpix 16:9 'issue': it is physically not possible to get this resolution from the sensor, IMX214 is 13Mpix@4:3, which means to get 16:9 ratio, some pixels have to be cropped (so you end up with ~10Mpix image). If some camera or ROM app claims 13Mpix@16:9, then it is just doing software interpolation (useless).
[JiaYu S3 Questions & Answers] :
Does not look like a definitive 'end' to me.

Let's hope current 'flagship' device still gets attention, and, at least, a stable 5.1.x release...
[JiaYu S3 Questions & Answers] kenturky:
I hope we also get an upgrade to android M some time next year... This device chipset is too good. It should last us for like 3 years!
[JiaYu S3 Questions & Answers] buby93:
so you actually imposted a ppin code or password or whatever you wanna call it. i swear in front of odino that i've never used a pin in my whole life! xD

---------- Post added at 07:47 AM ---------- Previous post was at 07:43 AM ----------

i'll try, but now the phone is in assistence in a small shop. I'll see it on monday. I'll try but i don't think it's SIM related because when I turn the device on it asks me the PIN CODE of the SIM and i know it and insert it. Then it asks me for this password security code that i've never seen in my life xD

---------- Post added at 07:53 AM ---------- Previous post was at 07:47 AM ----------

I really really appreciate what you did man, thanks a million times. When you say "in device manager go to USB and check that your laptop recognise the j3" ewhat do you mean? And by the way, this is actually my big problem, because my pc doesn't recognise the phone when i plug it in without battery. The J3 is recognised only when i plug him in in RECOVERY MODE (TWRP i have). Do you know how can i do to let the laptop recognise the device?

BIG THANKS:D:D
[JiaYu S3 Questions & Answers] ProTechShark:
Plug it in without the battery, then put the battery in. For about 4 secs it will connect in flashing mode then disconnect and go into charging mode. While it is in flashing mode you right click on it and select the drivers you downloaded.
[JiaYu S3 Questions & Answers] Bantryred:
First question are you on windows 8 or 8.1,if so you have to turn off driver signing by going into settings, update and recovery, recovery, advanced startup, it will ask to restart now, go ahead, then in chose an option select troubleshoot, then advanced options. It will reboot to advanced startup or old style safe mode, here you select 7 or f7 for to disable driver signing.

This is the same in windows 7 and 8, before you connect you're phone have device manager open, you can get there via control panel, plug in the phone with it powered off, device manager only shows it for a few seconds so be ready, select the new unknown driver that has popped up and navigate to where you have your drivers.

Hopefully that's it.

Best of luck.
[JiaYu S3 Questions & Answers] hariklis:
Yes, and be careful, it is not a pin. It is a password for sure. Mine happened when I switched the 2 Sims that I have. This was enough to trigger the security control. Anyway, this doesn't help right now since you deleted everything. The guys here have given you very useful info, I think you can unblock it
[JiaYu S3 Questions & Answers] sutty86:
just flashed tsunami v8 over superdragons b3 and the v8 is very good so far, like the stock dpi change and i did a dirty flash via twrp and it works great no FC
[JiaYu S3 Questions & Answers] R2D20208:
Use DPI changer. U find in the Rom. Chose 480 , and reboot.

---------- Post added at 03:00 PM ---------- Previous post was at 02:59 PM ----------

Use DPI changer. U found in the v8 Rom. Chose 480 , and reboot
[JiaYu S3 Questions & Answers] bombilakus:
Where can I find latest S3 roms. Im new to chinese flagships so I don't know where to search. I tried to google some of the names of the roms in this thread but all i got was some PT language sites :(

Which rom should I use to have gapps from the start? Thx in advance ;)
[JiaYu S3 Questions & Answers] kommando:
The offical roms are all here, the last roms never had Gapps included so have that already downloaded and ready on the phone as when you flash your old gapps will need updating.

http://www.needrom.com/download/jiayu-s3/

I used the OTA method.
[JiaYu S3 Questions & Answers] aszu:
Forget about those ROMs on Needrom, I think the best ROM is the Tsunami one:

http://www.movilesdualsim.com/tema/tsunami-5-1-lollipop-jiayu-s3-mod-mdsteam.104083/

(use google translate)

It is a bugless Lollipop with Gapps, etc included - amazing ROM.
[JiaYu S3 Questions & Answers] bombilakus:
Thx buddy Ill try it as soon as my S3 arrives tomorrow ;) Hope I dont brick it first day of usage haha
[JiaYu S3 Questions & Answers] Sta'ko:
Wich method do i have to use to switch from s3bw rom to s3b Chinese rom? And do i need recovery (do i have to instal it befor flashing ot after). Now i am on s3bw 20150325 rom and want to go to latest chinese one.
[JiaYu S3 Questions & Answers] justnewsp:
Bugless ???

KNOWN BUGS:

* High-pitched sound and music playing dirty the speaker. - low importance

* For some fellow Bluethoot nonfunctional. - this is important for some people

* Loss of signal data and low coverage - pretty important this one

* Failed to come from adjustments to battery . - translation sucks for this one, maybe important, I read a lot about Lollipop battery bug.

* GPS failure - really important for some

* When de-install an application, the icon remains and is not deleted. - low importance
[JiaYu S3 Questions & Answers] aszu:
1. Speaker always been pretty bad on this phone, and Lollipop actually sounds better - Tsunami ROM comes with Dolby Atmos that allows you to tweak the sound.

2. This is fixed in V8 apparently

3. No issues with signal or data coverage (3G/4G) on V8

4. Battery life in overall is much better on Lollipop than on KK. The meter sometimes drops quickly from 15% to 0%, but this is a cosmetic thing.

5. GPS works just fine

6. Not true, it works just fine
[JiaYu S3 Questions & Answers] justnewsp:
All right, in that case they should edit the page.
[JiaYu S3 Questions & Answers] guido21:
+1 for tsunami V8 although I had some strange screen behaviour while tweaking the settings in miravision. While adjusting colour temperature the screen would sometimes flicker and revert to a grid pattern, have not seen this in kk. Other than that it seems good for me so far. Scored around 44000 in antutu 64bit.
[JiaYu S3 Questions & Answers] maddogcz:
GPS is NOT ok on any Lollipop ROM I've tested so far (Ofic. Betas and RC, Tsunami v8). It is much less stable then on KK and accuracy drops significantly when moving, thus it is barely usable for car navigation (which is very important to me).
[JiaYu S3 Questions & Answers] aszu:
Yeah, I have seen the same Miravision glitch, but it only happens on settings screen, everything works great during normal use. My screen looks much better with color temperature dropped by one level and saturation increased by one level (shame there are no more granular settings possible).
[JiaYu S3 Questions & Answers] Bantryred:
Strange thing, ref: the guy with the screen lock problem. I put a second sim into my phone and that lock also came up for me.... O Sh1t I've no pin. But this is different, its Mobile anti-theft in security, I had this set up from long ago( lucky I remembered the password, if I remember correctly its a min of 6 digits and you have to select another mobile to be able to unlock from in an emergency through a text) in another lollipop rom and was still working on this new rom(maybe 4 or 5 roms flashed in between). So you might have to change from kk to lp or visa versa to change something that might be saved in a hidden partition.
[JiaYu S3 Questions & Answers] aszu:
I have not tested it in car recently (it seems to be OK when walking using Google Maps), but if the accuracy in LP is even worse than on KK then it is shame :(

Apparently GPS on new Helio X10 devices is also quite poor, Mediatek should really get their **** together, it is just embarrassing that they have got consistently the most poorly performing GPS for years...
[JiaYu S3 Questions & Answers] guido21:
Same here, I only saw it on the settings screen. I've been looking for a way to tweak the rgb settings at the kernel level as one of my phones is a bit strong with red. The nexus 5 seems to have a custom kernel and tools available to do this and there's loads of kernel tools in the play store that claim to do this if supported by the kernel (which these kernels obviously don't). I've tried a screen filter (cf lumen) which allows me to get it just right but it's only a filter overlay, I'd prefer to set it properly as a system setting.
[JiaYu S3 Questions & Answers] aszu:
Yes, it would be really nice if Miravision app allowed for more detailed configuration, like applying ICC profiles, calibrating gamma and RGB balance. This technically should be possible as apparently Mediatek uses a dedicated, fixed-function silicon (very power efficient) to perform those Miravision-related image tweaks..
[JiaYu S3 Questions & Answers] wangdak:
Guys, are you using app GPS STATUS https://play.google.com/store/apps/details?id=com.eclipsim.gpsstatus2 on your phone? Is it working for you?
[JiaYu S3 Questions & Answers] Levered:
Can anyone upload me media_codecs.xml from system/etc lollipop rom.
[JiaYu S3 Questions & Answers] superdragonpt:
Tsunami Rom

As i really hate speaking about others "work", unless something bad comes from it :

This rom (like any other out there), exception for the 2 Unofficial builds i posted here on xda.

Where (of course) cooked (not made) from official betas, my 2 unofficial builds, are NOT based on those Betas.

Using cooked roms is Fine, but there's an issue with the latest "tsunami", and that is the MODEM used is from KitKat Builds.

The modem "seems " to have fixed BT related issues, (not true, but it does changes some of the behavior, yes ...), in reality it's extremely harmful for the device, mixing such basebands versions concerning all that as changed between kk-> LL

You can use the rom,

BUT PLEASE, change that modem, it'll mess the device in mid term.

Since the "author" is somehow very innocent concerning how SDK's work/ 32bit/64bit / android...

and he doesn't have any idea how bad this is, so, no one can really blame him, i know (i hope), he didn't do it in purpose.

They used an older KK modem and then They Thought : "it seems to work, so it should be fine, lets release another build"

he couldn't be more wrong.

For dolby atmos it's all here on xda: You can use it on any ROM:

http://xdaforums.com/android/apps-games/mod-dolby-atmos-t3109446There's also another 10000(0) sound engines here on xda for you to try it out ...

MiraVison is inbuilt on LL/SoC already by default, the app itself is just the user iterface.

it's of course expected to have bugs, since it wasnt't build for this device...

recap: If you flash this lastest tsunami build, please do change the modem, (located in /system/etc/firmware)

cheers
[JiaYu S3 Questions & Answers] maddogcz:
Well I have 2 phones, both with MTK6752 chipset and both behave exactly the same (Jiayu S3 abd Mlais M52). On KK GPS fix is very accurate and stable even in going car (3-4 m mostly), on LP as I described earlier. It seems to be some kind of prolem with combination of LP and this chipset. Does anyone have some other phone with MTK chipset and LP?
[JiaYu S3 Questions & Answers] genesisalgor:
And I would say it's not stable and perhaps not secure... When related to the screen temperature setting, it forces the screen on very cold/blue tones, or hot/red tones, And when I say "force" i mean you literally overrates the color to a very blue display or a very red display, and while messing with this, two times I've saw my display goes crazy, gray as a TV with no signal, so I don't know if this ported MiraVision app is secure or if it can damage something.

[MENTION=5238428]superdragonpt[/MENTION]
[JiaYu S3 Questions & Answers] Aussie_Oddball:
Hi

I am not up on the twrp side of things but when you connect you phone to window in the bottom right it you should see a USB picture. If you don't have the phone driver loaded. If it is not it should be looking to find a driver. Us the vcom software folder and point window at the appropriate file for your operating system. The other place to go is control panel - hardware and sound - device manager. Scroll down to universal serial serial bus controllers. Plug in the phone switched on. Click the universal serial bus line and windows will show all the usb interfaces. When the phone is plugged in the controllers should update and if you don't have a driver you will see exclamation mark. This mean you don't have the driver. Download the USB vcom file I gave you in the folder you should find a .inf file for you version of operating system.

Check your cable. I have 2 both will charge the phone but only one will show the phone in devices and printers under windows. If you are not seeing window searching for drivers etc. You cable could be the problem. You have to get windows to see the phone before you can flash. Hope the helps.
[JiaYu S3 Questions & Answers] superdragonpt:
Worst case scenario, it can messed up your LCM

If it's messing so bad with the screen color temp, like your saying...

cheers
[JiaYu S3 Questions & Answers] genesisalgor:
My display is okay, the situation is such that changing the value of the color temperature when you can put a very blue or red tint on display the strange issue can happen while messing with this. So I've reset the settings and not messing with that anymore, but overall I think it's not secure to mess with this heavily ported Miravision, if this issue happen users can easily damage their displays while messing with this.
[JiaYu S3 Questions & Answers] superdragonpt:
Ok, thanks for the helping the other guys ;)

A new screen cost ~70 - 90 Eur, be carefull

cheers