yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Core Prime Guides, News, & Discussi] jabarel:
I can edit and delete apps on system so it`s rooted.......i don`t know which boot.img to download and flash it with flashfy...i don`t know if i need to flash via kitkat or via lolipop ! And yes its a very good phone at low price
[Samsung Galaxy Core Prime Guides, News, & Discussi] Lycris11:
Dont worry too much try to google about it there is a lot of fixes for reactivation lock :)
[Samsung Galaxy Core Prime Guides, News, & Discussi] jabarel:
http://www.verizonwireless.com/dam/support/pdf/system_update/benefits-galaxy-core-prime-6-22-15.pdf

i found this but i don`t know from where to download this firmware ! on sammobile doesen`t apear ! From one week i just try to unlock that but no chance...i will go to friend to see if he can unlock via z3x box or smth else

The verizon softwares don`t apear on sammobile?
[Samsung Galaxy Core Prime Guides, News, & Discussi] gabi4175601:
You can't find it because it doesn't exists a g360f Verizon that is g360v kernel is incompatible
[Samsung Galaxy Core Prime Guides, News, & Discussi] jabarel:
yes....i`m out of any ideas ! i dono how ppl flash via odin i can`t i recive that auth fail all ppl have reactivaton lock off only at mine is on grrrrr! i don`t know where that reactivation lock is on boot.img ? i flash 10 boot.img but nothing
[Samsung Galaxy Core Prime Guides, News, & Discussi] gabi4175601:
You said that your phone was in service what parts have they changed
[Samsung Galaxy Core Prime Guides, News, & Discussi] jabarel:
On waranty certificat it`s write like this : Replace motherboard , UP6 SOFT, imei wasn`t change so they replace only a part from motherboard
[Samsung Galaxy Core Prime Guides, News, & Discussi] Lycris11:
Just go about search youtube about it im seen there a lot of stuff about reactivation lock...
[Samsung Galaxy Core Prime Guides, News, & Discussi] gabi4175601:
If they replaced the motherboard with another refurbished one the previous owner could have locked it and you cant unlock the kernel I had the same situation with an s5
[Samsung Galaxy Core Prime Guides, News, & Discussi] jabarel:
Hmz it`s posible ! But if i use from odin nand erase all repartition and efs clear ofcourse with efs partition backup can i escape from this kernel locked? or just simple i will use kiezer (that thing wich give me 2000V on the phone but on the montherboard will not see nothing all components will be broken but they will don`t see anything everything will be dead batery display and all components) it`s not first time when i will use this :)
[Samsung Galaxy Core Prime Guides, News, & Discussi] gabi4175601:
It's a solution but you can pull the battery wile flashing and get the same results :)
[Samsung Galaxy Core Prime Guides, News, & Discussi] jabarel:
I found something for unlock bootloader but i can`t download the modaco superboot.zip they whant money :D

http://www.unlock-bootloader.info/mp3-0/samsung-galaxy-core-prime-6716.html
[E 2015 Q&A, Help & Troubleshooting] boolean22:
Hi all! I tried to flash 5.1 retus on a 5.0.2 retla variant (as the tutorial said it would work on all variants, and both are for XT1527) without unlocking the bootloader.

Sadly it won't boot (boots directly to bootloader) and can't go back to stock.

It says: 'version downgraded for boot' 'failed to validate boot image'

This is a problem because everything I find about it says that I should either unlock the bootloader or find a newer retla ROM to flash over. Sad part is that this version is not coming any soon.

I tried to unlock bootloader afterwards but since I've never checked the option inside Dev Options this is like a no-go.

Any ideas?
[Java for Android App Development] PierreBdeB:
Hi! I’m Pierre Benayoun and I’m an French indie Dev. I work on Activity tracking on android since more than one year.

I work since February on an android app named « Fit Plus« . The purpose is to use all data collected by Google Fit to give specific nice data and analysis like « You broke your walking record, congrats! ».

There was a prototype online, but I worked on a new version which could give more interesting data since end of March. Initially the update should take one week. But finishing this version takes lot more time than I thought.

At last, I uploaded the new version last week… four month later.

And now?

So here is a post about that four months and the challenges I have to overcome.

This post is made from a post on Medium but I cannot yet make any external link so I will make a comment by challenge. Any feedback appreciated!

When you start a journey to the unknown, don’t expect be back for lunchtime

Let’s resume the facts

I work since the beginning of 2014 on Activity Tracking on Android

Early 2015 I decide to play why Google fit API. This little software let you and your app get (and play) with data monitor by Google Fit.

First step: Fit Plus a little app which display all activities monitored by Google Fit and some statistics.

At the end of march I finalised a little prototype and I expect to deliver an upgrade the week after. Finally, the update will be ready at the end of July: four months later.

So whyyyy ?

First of all a startup/indie app is a project where unknown is the rule. The Lean Startup method exists (amongst other things) for this reason. You cannot control your agenda and here are Six challenges I had to overcome that explains this four month delay.
[Java for Android App Development] PierreBdeB:
Challenge 1: The dev trap

Oh I can display the location! Oh there is a library on Git Hub to make charts! And if I try to make some stats ?

These functionalities are not even all in the app but I couldn’t help myself to play along with. The problem is not to test some alternate functionalities, the problem is to always trying to and worse to try to insert it in the next version.

It’s a developer trap.

You play with the tools, but you are not focusing on the killer functionality that will really help users:

A good way to waste some time
[Java for Android App Development] PierreBdeB:
Challenge 2: Even the simplest app must explain what it does

It’s not big challenge, especially in term of development time, but do not forget that even if you have a killer functionality you can’t just put it in the front of the user.

My prototype app launched, asked brutally for a connection with Google Fit and brutally displayed data. No intro, no explanation. An other indie dev asked me on twitter why my app should connect to Google Fit.

In my opinion, it was obvious but not for him, he just saw a link for an app in Twitter, installed and launched it.

The ideal way is that all information is displayed in a manner that why it’s there, what it’s useful to, is obvious. But it’s often extremely difficult. A simple intro is not perfect, but better then nothing believe me.
[Java for Android App Development] PierreBdeB:
Challenge 3: When an app does the same thing as yours

And it’s even worse when it happens two times and even when it’s Google.

In 2014 I made a beta of an app on android that monitor your activities: activity-report. And three month after Google launched Google Fit that did the same thing.

Me alone vs Google -> Fail -> do something else.

In 2015 I’m making an app that does what Google Fit does, but better: Fit Plus. In May Google release an update that does the same thing than the unreleased one of Fit Plus.

Me alone vs Google -> Fail -> do something else -> 1 month.

There is one million app on Google play and among them there is some competitor that can make an upgrade or a new app that does the same thing as you. That’s the game.

You can’t predict the unpredictable. But you can prepare yourself to some major changes:

Have one or two ideas/functionality to develop if the current one is no more a killer one

Have a lean software architecture capable of bearing great changes. I know it is exponentially easier to say than to do. But knowing this fact before the first line of code helps.
[Java for Android App Development] PierreBdeB:
Challenge 4: Material is sexy but buggy

I develop on android so using Material design is quite an obligation.

In absolute terms why not ? It’s sexy and Google give you (for free!) all docs and tools needed to use it.

In addition it helps user feeling « at home » with any application he’s using. And last but not least you do not have to have any sketching talent to use it. You can just use texts and the dozens of icons that Google (or others) provides to you.

So is it the perfect world ? Nope, it was more complicated than that.

If you want to use material on older versions than Lollipop (at least 80% of devices) you will soon realize that all tools (like animations) are not available and that some of them are buggy.

For example I spent two hours this week to have a navigation bar that looks acceptable.

In order to have « overview » in blue when the user is…in the « overview » page I was obliged to cheat, the method Google told me to use didn’t work. An other good way to waste time.

The good point is that the things are going better and better. Since I’m developping on Android I saw 29 (29!) versions. Sometimes with huge impact on display … and development. Fortunately the rhythm of these version is going slower and impacts is lesser each time.
[Java for Android App Development] PierreBdeB:
Challenge 5: The uneasy Google Fit API

Let’s discuss the heart of my app: Google Fit API.

So Google gives you for free one API (a little software that you can include in your app) that allows you to read all (almost all) data Google Fit tracks. Again is it a perfect world? Not yet.

It’s a huge opportunity that Google give to developers. But it’s not an easy one.

My prototype basically asked Google Fit API: Give me the steps of the day ». Easy.

But I wanted to have far more data: the biggest distance I made on one day, the fewer steps I made a month and so on. This required a work I didn’t figure it out.

First I needed to construct an architecture able to :

ask and store in memory some data like activities time or steps

being able to work with it on a daily, weekly or monthly basis get many statistics like average steps, maximum distance

That wasn’t easy. Android use Java as programming language. And the actual version (contrary to some language like Scala) is not comfortable with these kinds of Data. I made all by myself and it was long, fastidious and source of many possible errors.

In addition the point is that Google Fit API is not yet completely mature. If you use the classical command for example you don’t have the right amount of steps. You must use a five line command to have it. I found it on the Google plus page of the API almost by accident.

Also the API is not very fast : I needed a minute to have all the data I need and sometimes my app accidentally disconnect from the API half way …

Fortunately, people (including the official team) on the Google plus page of the API are very kind and helpful. And the Google developers work hard on debugging the API. The hard work is done !
[Java for Android App Development] PierreBdeB:
Challenge 6: Getting data is good, display it wisely is better

That’s the heart of the problem. If you think about it Google Fit allows you to get steps, calories for at least four activities like walking, running, biking and it’s hidden in the official app the time in vehicle. That’s already a good amount of data.

If you add statistics on different periods (day, week or month) it multiplies possibilities greatly.

If you want to add charts (and especially if finally you don’t use them), some analysis, it takes time, a lot of time. In my opinion it’s the main challenge I had to take up.

First of all display twenty five data on a single mobile screen can cause some headache. I tried many, many different displays (I would love to show you them but no external links !) before having something interesting.

And like using CSS for a web page, at each try you always waste a huge amount of time to align this darn title with this darn icon.

But the main reason why my upgrade took four month and that I spent so much time play with API, try to display data with this or this configuration is that no one has found the perfect display.

The main challenge is to display the useful information. All apps I know shows more or less all data they have. No analysis, no statistic (or a few ones). You can have all the charts you want it’s sexy but not relevant insofar.

I wanted to have real statistics but also a quick analysis, an estimation of data at the end of current day (or week or month).

It took time but I don’t think it’s wasted. Fit Plus is doing all these things.

I’m aware that I'm, at best, at half of my journey in Activity Tracking. But I have some interesting directions for the future.

Stay tuned !
[Android Q&A, Help & Troubleshooting] eclay:
Hello I'm looking help with my kindlefire 8.9 hd. I attempted to root and install twrp on my tablet and then rebooted. I know am only seein the tablet boot up and then power off and boot up again. Only thing showing on the screen is the kindlefire logo. When it's connected to my windows pc I hear chimes for when it powers on and then down again.

I have attempted to run the setup script again on my desktop and the fastboot getvar devices command. When I do this It just says waiting for device. Again it keeps rebooting itself so it isn't really up in a state that would allow it to be viewable/usable from the pc. Basicly it powers off/reboots before I'm able to do much with it.

I'm not really sure what to try next or if there are any options at this point.

I was following this tutorial to root/install android on my kindlefire 8.9 hd.

Well I'm unable to post with a url in it until I the 10 post requirement. Any help would be greatly appreciated.
[Android Q&A, Help & Troubleshooting] Yathani:
Or will it ever get better ?

I switched from IPhone to Android back in 2013 when Samsung announced the Gakaxy S4. My opinions were mixed and i kept switching back and forth between the iPhone and the S4. I decided to switch to the S4 as my daily driver and since then i never looked back. I kept on upgrading every time to the latest flagship Note 3, Tab S 8.0, and now my Note 4 & Tab S2.

I noticed that android improved a lot in such a short time, but in some areas it remained the same. All of my devices not as smooth as my old iPhone in scrolling specially in websites that contains ads. I tried my best to fix this issue and tried other devices but it seems that Android is plagued with this issue on play store, chrome and many others. It seems like the developers can't hit the right spot in coding.

I tried to look for an answer but most of the info i found pointing to the problem that only Google can fix. Some say that UI rendering is not getting the priority in the process some other they say its because Apple optimize its ios on their phones and other say its because Android coding is hard compared to ios.

Will we ever see Android as smooth as Ios ? The question is going in my mind for a long time and the only reason I'm still with Android is because i love the filixablity that it offers to the user despite the other issues that we face with scrolling and surfing websites.

Would love to hear your opinion and if you have something to share.

Regards

Yathani
[XDA Assist] XDA Visitor:
Hello!

Almost every single app shows 0 bytes of space taken in the foldermount. Because of that, I am not able to move anything to sdcard. Everything was fine untill I decided to clear the phone including root. I restarted my sdcard cause it was parted as two partitions in order to work with link2sd - I used partitionwizard to clear and merge partition. Now it seems something got broken. I also tried to default settings of the phone. Got rooted again but didn't help. I am using the same root as before - Kingroot. I tried also another ad card - same thing.

My phone is HTC Desire 310 with android 4.2.2
[Huawei MediaPad X2] mtyler7807:
Honor x2 reporting emui 2.0 an incorrect amount of RAM and the wrong resolution on the screen. I have not change the resolution and the build.prop file. And I have not done anything else other than remove the China China apps from the phone and installed official apps. What could cause this? Look at the image below.
[Huawei MediaPad X2] ajsmsg78:
When you go into the Cust folder and delete certain xml files that's what happens. It will display the wrong information in About Phone. I think it's the hw_defaults.xml file. If you delete that it will show you EMUI 2.0 etc in about phone. I had the same problem when I deleted the entire Cust folder.
[Huawei MediaPad X2] mtyler7807:
I went ahead and reinstalled b015 and restore my twrp image and everything is OK. Thanks for the info.
[Nexus 9 Q&A, Help & Troubleshooting] wifesabitch:
Reload, reload, reloading tabs all the time. My Nexus 5 doesn't do this. I tried Firefox on this and it's even slower.

What's the deal? What are tabs reloaded so often? Only have 4-5 open at a time.
[Nexus 9 Q&A, Help & Troubleshooting] ritchea:
I'd like the answer also. FWIW, it's even worse on Dolphin. Dolphin causes more heat than Chrome (I use beta). It seemed lock-ups and random reboots were happening while using Chrome, but reboot happened with Dolphin. Then, a reboot when I opened Play store app. Very frustrating.
[Nexus 9 Q&A, Help & Troubleshooting] enriquejones666:
Discussion of browsers here:

http://xdaforums.com/showthread.php?t=2965895

I've tried Habit browser, and it does seem to be easier on system resources.

Sent from my Nexus 9
[Nexus 9 Q&A, Help & Troubleshooting] HasnaCuz:
Yeah so dam annoying, common google do something.
[Nexus 9 Q&A, Help & Troubleshooting] USBhost:
Chrome works just fine for me

I too have 1-5 open at a time mostly 5+ when I'm testing memory

and no reloads! Well of course I get reloads if I go over a certaint amount
[Nexus 9 Q&A, Help & Troubleshooting] kacanghantu:
IMO,chrome consume more ram compare to other browser..but it never happen on my nexus 7..i think maybe it is because of 64-bits apps need more ram compare to 32-bits apps..you can try CM browser
[XDA Assist] Settler11:
Some site is selling random phone and stuff and one of them is this phone. They said it's a HTC. Very specific right? I've owned a few HTC's myself but I can't guess which this one is. Can you guys?
[XDA Assist] Mike B.:
Hello and thank you for using XDA Assist.

We cannot provide technical support nor can other members reply to your posts here on XDA Assist and it would be difficult for anyone to guess which phone is shown in your picture without at least some additional information. That said, you are welcome to ask in the friendly general Android Q&A, Help & Troubleshooting forum at http://xdaforums.com/android/help. That's a good place to start where experts familiar with that device might be able to help you.

Good luck!
[XDA Assist] Settler11:
Ah, sorry about that. Can you remove this one then? :)
[XDA Assist] Mike B.:
No need to apologize, we're here to help point you in the right direction.

This thread is now closed.
[Galaxy S III Q&A, Help & Troubleshooting] silva_dump:
Hello guys

My friend have a galaxy s3 GT-I9300

He have some how updates his phone to jelly bean

After the update

Phone is on safe mode

And he cant download or run anyapp

Can anyone help plzzz

Wiping data

Wiping cache didnt help

Plzz help guys

Thanks in advance
[Galaxy S III Q&A, Help & Troubleshooting] Roobwz:
Flash a stock firmware from sammobile.com and everything will be ok
[Galaxy S III Q&A, Help & Troubleshooting] silva_dump:
I cant find the original csc codes bcz i cant even install phoneinfo app

Is there any easy solution
[Redmi Note 2 Q&A, Help & Troubleshooting] damianhartog:
Hello everybody from Xda,

I'm looking for a new phone for my mother and I am really interested to know what the GPS is like. If the gps is any good I will join the Xiaomi army.

Why am I so interested in this?

Well my mother her navigation system just died and, I would like to install the tom tom app on her phone, I've got it currently on my oneplus one without internet and it's great. My mom will also have no data plan with her phone so google maps or anything isnt an option for her

So my question to you guys is, does anybody of you have had any ecperience with the gps.

Thanks in advance XDA,

Deameong
[Redmi Note 2 Q&A, Help & Troubleshooting] cataplines:
I am curious about the same thing. I use GPS without any Internet or even phone signal (normally on airplane mode to save battery). And I would like to know how reliable it is.
[Redmi Note 2 Q&A, Help & Troubleshooting] Galdan:
Attached a Screenshot, few Seconds (about 30) after switching GPS on. GPS receptions is really good, from my point of view.
[Redmi Note 2 Q&A, Help & Troubleshooting] eyalabush:
Just recieved it now,

Using google map and waze, locking on me very fast,

Looks good and stable with great reception of the GPS...
[Redmi Note 2 Q&A, Help & Troubleshooting] darko150:
Can you say how much time in seconds need to lock satellites?

Thank You
[Redmi Note 2 Q&A, Help & Troubleshooting] damianhartog:
Thanks alot for the advice guys,

Going to order it tonight!
[Redmi Note 2 Q&A, Help & Troubleshooting] Ouzo:
I've just come back from holiday and I used GPS extensively with the offline Co-pilot app. It worked almost flawlessly both in the car and when cycling. I can't begin to tell you how much better it is than older MTK eqiluipped phones. Lock times varied from four seconds to nearly a minute. One thing I noticed is that it was much faster to lock in Co-pilot when I was connected to the internet. Accuracy was great, though I never went into a big city with lots of high rise buildings.
[Redmi Note 2 Q&A, Help & Troubleshooting] Klanac89:
GPS, Wifi and network signal 2-3 times better than on my Note 4.

GPS is sick, in my room after 2-3 sec.
[Redmi Note 2 Q&A, Help & Troubleshooting] androik:
Hello,

Runkeeper with someone tried, I hesitate to buy the premium just because of that?

(avec Runkeeper quelqu'un a essayé, j'hésite à acheter le Prime juste à cause de ça?)
[Redmi Note 2 Q&A, Help & Troubleshooting] the incredible:
I really want to know about the gps as well. I use the gps so much. Now I have the lg g3, I would like to know if this one is around the same as g3.

Thanks

D.
[Redmi Note 2 Q&A, Help & Troubleshooting] winargo:
Ill give uadvice gps locking depends onyour connection and area,i use gps in city with locking time vary from 10 -80 sec or more the signal was good but for gps signal its not good so it some time locks slower, this is qqualcomm 400 chipset ,newer version of mediatek might performs better and i have ever try gps with airplane mode one using gps test on aa mountain area and it lock 30 sec or less,the signal came out by it self with no connection so everything depend on your area and your xhipset ,newer chipset performs excellent on gps
[Redmi Note 2 Q&A, Help & Troubleshooting] Or3:
I'd like to know more about how the GPS in this phone is faring for you because for me it's an endless horror story. Neither Google Maps nor Endomondo give even acceptable locations and tracking.

And the compass is so bad I wanna puke.

The phone is great in almost every other aspect, but GPS is fairly important for me and I'm starting to regret purchasing this phone. May it be fixed with better ROMs or is it a hardware fault?
[Redmi Note 2 Q&A, Help & Troubleshooting] 433Mhz:
I used it yesterday for half an hour in inner city traffic. The phone found the GPS signal in a few seconds with data connection, without it takes a minute or two. Navigation itself was worrisome. Went under a bridge and signal was lost for about 2 minutes. Then Google maps always thought I was going inside buildings or streets next to my actual route. Really weird.
[Redmi Note 2 Q&A, Help & Troubleshooting] Adrian.Chandra:
Inside my room 2 - 3 seconds lock, the best gps on any of my past smartphones.