I also face the same issue. Just format your phone and you will be able to open the videos. Please reply if your problem did not solve.
i truly agree with most you guys here , the samsung Grace UX software on C9 Pro has lot of issues ( The loudspeaker issue is pretty common , including Bad rear camera in Night , poor back colour job - Matte Black , Heating Issues ).
The Entire C Series is actually a downgrade than the earlier A series 2016 , whereas A series 2017 is upgrade IP68 , but downgrade on Camera side i.e. No OIS , in fact A series with 32 GB is more expensive than C Series - 64 GB which just proves how Samsung consider C Series ( See prices of C7 Pro vs A7 (2017) ) , A series has better built quality ( Back with gorilla glass like in S8 , S7 ) & bit stable software ( As of now , cant predict what happen in future upgrade , had bad experience with Grand 2 when upgrading to Kitkat so dont know how Nougat update will be )
I am thinking of Going with Apple or some good chinese manufacturer like Oppo , OnePlus , i had problems with sony software ( Nowhere near Samsung issues ) , whereas we go with Brand Samsung & they disappoint they just downgrade the OIS camera for new C & A Series which proves a lot about samsung. I was to buy a C9 Pro for 64 GB in exchange for A9 Pro or the S6 Edge ( my backup phone right now ) which i have but the rear camera quality in Night time ( Non existant ) & the issues posted here made me think otherwise.
if i install nougat will camera quality will be better
it is really poor for 16 MP
is samsung gonna fix this!
Thanks and sorry for my poor english
HEMAL PATHIRANA, 08 May 2017"this is the last samsung phone i am using, after that i am gonna switch, maybe the samsung go... moreI had been using samsung mobile from past 5+ years but this phone will be my last samsung phone. I agree to what prior 2 comments about Samsung. Even I would opt to better change to some different brand of mobile.
AnonD-667842, 08 May 2017I am using galaxy C9 pro since first week of April 2017.
The problems that i have encountered... more"this is the last samsung phone i am using, after that i am gonna switch, maybe the samsung got lots of buyers and in this rush,they forgot to make their phones better or maybe is Because they have a good selling of their phones these days."
YOUR LAST WORDS ARE VERY TRUE, SAMSUNG MAY HAVE BIG QUANTITIES IN SALES SINCE THEY MAY NOT CARES CUSTOMERS PROBLEMS IN MID RANGE DEVICES.
Im also facing some of this issues but no solution from samsung, my next phone brand mostly will be Nokia or Huawei.
Anonymous, 08 May 2017any app on top of the screen need to be close or disable,like: messenger chat head, twilight a... moreThanks friend, I have uninstalled DU battery booster and, reset the app permissions in my phone. Then the problem gt solved......thanks for your opinion ......
I've recorded some videos and when I tried to watch them (in Galery and Video), the videos failed to play and it repeatedly states "an unknown error has occurred". Does anyone know how to solve this? Tqsm
I am using galaxy C9 pro since first week of April 2017.
The problems that i have encountered are
1. Loudspeaker gets activated during call even if i don't press or touch the loud speaker icon
2. Phone overheard unreasonably,i am scared to hold or use it when its gets too hot
3.The latest and the most annoying problem is that, after I have upgraded its software, it stops in the midlle of every task, either it'd be games or videos or anything and then it shows wallpaper or lockscreen wallpaper without any icons or options and the goes blank. During this process no buttons on the phone works and also the screen stays unoperatable and idle.
If i were to give an opinion about this phone, then i would say it's the worst one i ever had, though the camera is 16 mp, it lacks in clarity and the music app thats preinstalled in it is similar to that of j series. I mean shouldn't there be a difference between phone of different ranges?... this is the last samsung phone i am using, after that i am gonna switch, maybe the samsung got lots of buyers and in this rush,they forgot to make their phones better or maybe is Because they have a good selling of their phones these days.
I have purchased C9 pro before 10 days. My Camera Lens broke automatically and because of which Camera is also affected. Samsung Service centre people are not believing that it can broke automatically. Phone gets heated also. Think before buying this phone.
HEMAL PATHIRANA, 08 May 2017How to elimate/Solve "Screen overlay detected" error in my Samsung C9 Pro??? Please give me a... moreany app on top of the screen need to be close or disable,like: messenger chat head, twilight app, gesture app and etc.. after disable or close those apps, the permission for the app can be allowed. it's android 6.0 security feature to prevent app to get sensitive data. android 7.0 has fix this issue. Update to android 7.0 if updates is available for C9 pro.
Samsung Galaxy C9 Pro mobile is nice and handy mobile. I am using this since Jan.17
Things one may like :-
1- 6'' inches screen (If you are watching movie or playing games it is awesome)
2- 4000mah battery, So that whole day without battery issue you can enjoy.
3- 16MP front camera is the most suitable thing for selfie lovers.
4- Sound quality is somehow ok but not extraordinary .
5- 6GB RAM is extremely pump up speed of mobile.
Things you will not like :-
1- Though Rear Camera is 16MP, but we can't zoom them and quality also not very good.
2- Battery heating issue - Sometimes while using battery gets heated which is irritating.
How to elimate/Solve "Screen overlay detected" error in my Samsung C9 Pro??? Please give me a help for this?? Is that bug???
AnonD-657971, 15 Apr 2017Oh no no no.
If they want to make a 6.5 handset let them start another line of phones like ... moreI am using C9Pro. Since last week i am able to hear only when speaker is on.Without the speaker it is mute.Can someone help
AnonD-633729, 13 Mar 2017Samsung phones can withstand at least 5 feet drop. There is no burn in issues with samsung scr... moreWhat?! No burn in issues for sammy? Are you high?
They even made the s8 home button sign go off and back on from hour to hour just in case of burning in. And you claim there are no burn in issues?
Well youtube and the whole internet can prove you wrong here.
Please is the Nougar 7 officially out for C9 pro anybody give me the link
TadZion, 06 May 2017You can root your smartphone and flash it using a new ROM, this is at your own risk. There wil... moreI willing to take the risk to flash it,even if it will to destory mine,because of the damn china set,the secure folder,s health are all NOT working and also that's is no stereo sound playing out on loudspeakers from FM Radio,only the bottom speaker works,but no problem on video,gaming and music still can get stereo output from loudspeakers.
But really can't get the stock Rom,some even need to pay for it.
Mine is the c9000 model,rom ver. C9000ZHU1AQA1,can i flash to other model Roms,as long all above work.