Samsung A3/A5 (2016) poor performance when screen is OFF - Galaxy A3, A5, A7, A8, A9 Q&A, Help & Troubleshoot

Hello,
we have a serious issue with CISCO Jabber for Android (Play Store) on our Samsung devices (Samsung A3 2016 and Samsung A5 2016).
CISCO Jabber is a collaboration application that allow us to make voice calls through Wi-Fi data connections.
On our Samsung devices the Jabber call audio quality becomes very bad (voice incomprehensible) when the screen is turned off.
We tried CISCO Jabber on other devices like :
- Huawei P9 Lite (Android 6.0)
- Wiko Fever (Android 6.0)
- Nexus 5 (Android 6.0.1)
On that devices, CISCO Jabber™ Applications works always fine evenif the screen is off
We have the following devices which are using Jabber and which suffer the issue :
- Samsung A3 2016 - SM-A310F - Android 6.0.1 - build: MMB29K.A310FXXU2BPI8
- Samsung A5 2016 - SM-A510F - Android 6.0.1 - build: MMB29K.A510FXXU3BPL1
All the Power Saving settings are disabled!
Do you know this kind of issue ?
Why when I turn off the screen (e.g. due to proximy sensor) the application suffer and works bad.
Using "Simple System Monitor" we saw that the Samsung phones turn off some cores or/and slow down the frequency cores.
When the screen is off, only one core ("red" core) is always on.
See : h t tp://imgur.com/a/404ch
We perform this test :
We have rooted the Samsung Phones (Galaxy A3 and A5) and set the minimum core frequency to 1Ghz (instead of 400Mhz).
Using this setting (minimun core frequency 1Ghz) we did around 50 tests and we NEVER GOT THE ISSUE (turning off the screen).​
Please note that other app (like Viber, Whatsapp, Skype) do not have this issue when the screen goes off.
Is CISCO Jabber App bad written ? How can they do ?
We can do anything to improve the phone performance when the screen is off ?
Thank you,
Salvo

Related

[Q] Bluetooth Auto-disconnect Every 15 minutes

I am not sure if this the right place to post this but I have spent so much time on the problem that I thought it was time to see if someone else has an idea.
I use Bluetooth a lot and am actively using the following Bluetooth devices:
Plantronics Legend (phone calls)
Sony SBH20 (music while motorcycling)
Volkswagon GTI (phone calls & music while driving)
Jawbone ERA (optionally when I don't have the Legend around)
Sony Smartwatch 2 (does not connect to phone/audio)
Gear 2 Neo (would like to replace Sony watch, see below)
All of the audio based devices (including the Neo) routinely lose connection approximately every 15 minutes regardless of which device is actively being used. Other people are complaining of similar issues after an upgrade to KitKat (see below for a discussion of my environment). The Sony Smartwatch does not disconnect pretty much ever. What makes the whole thing really weird is that if the Sony Smartwatch is connected than the other devices don't disconnect either. Therefore, if I am using the Sony than everything works well. However, I really like the Neo hardware and would like to switch but if I do everything starts auto-disconnectng.
I am using an I9500 and have tried the following things all with the same symptoms:
Prism Barebone ROM vers. 6.0-8.0 (4.4.2)
PhoeniX ROM 10.1 (4.3)
Wireless on/off (some others have suggested that similar problems may be due to the wireless trying to use the same band as Bluetooth)
Different Baseband versions (currrently XXUBMG9)
I don't think this can be blamed on the connected device, since it happens with so many different devices and since it doesn't happen when the Smartwatch 2 is connected there must be some software explanation.
Anybody have any ideas?
Thanks for reading this far.
Fred
P.S. I know it is ~15 minutes because I measured it over the course of five disconnections with the stopwatch on the NEO.

Turkcell T60 All We Need To Talk (A Variant Of ZTE Blade S6)

Till long time we need to open a topic to discuss our problems about Turlcell T60 (it is a variant of ZTE Blade S6 but it has only one sim)
So i am happy yo open it now...
And the first question isssss;
How can we find (or can we find) custom rom for this phone? also how can we find Custom Recovery for this phone too...
Some info
Thanks @any_body for opening a new thread for the handset.
I would like to give some basic information about the the phone. Here it goes...
Turkcell T60 (Operator branded - available since May 2015 only in Türkiye)
Manufacturer: ZTE
Technology: GSM / HSPA / LTE
OS: Android OS, v5.0.2 (Lollipop)
CPU: Quad-core 1.50 GHz ARM Cortex-A53 and Quad-core 1.1 GHz Cortex-A53
GPU: Adreno 405
Chipset: Qualcomm 8939
RAM: 2 GB
SIM:Nano-SIM
Dimensions: 144.2 x 71.7 x 7.8 mm
Weight:129.2 g
Display: IPS LCD capacitive touchscreen, 16M colors
Size: 5 inches
Resolution: 720 x 1280 pixels
Memory: 16 GB internal, microSD up to 32 GB
Camera
Primary: 13 MP, 4160 x 3120 pixels, autofocus, LED flash
Secondary: 5 MP
WLAN: Wi-Fi 802.11 b/g/n, hotspot
Bluetooth: v4.0
GPS: Yes, with A-GPS
Radio: Inactive (by the GSM operator - Turkcell)
Battery: Non-removable Li-Ion 2400 mAh
Stand-by: up to 400 hours
Talk time: up to 17 hours
Latest firmware: T60_V1.0.0B15
Support URL: www ztedevice com / support / 7feb5196-e301-4844-8235-932cc992a274 html (will rephrase this URL when I reach 10 posts)
Here are some hands-on experience:
It is full of bloatware, but half of them are uninstallable.
Screen is not Gorilla glass, but I think it is oleophobic coating. Slides smoothly, no finger prints.
It is a light phone, carrying in the trousers' pocket is no problem. The back cover is plastic, scratches easily so it is recommended to use a thin silicon cover.
The earphones is good for low frequencies, poor for high frequencies, still acceptable.
Consumers are charged for an FM Radio receiver tax, but the FM radio is not activated. Turkcell is not willing to give feedback for any inquiries related to FM radio. I had to send a twit to the chairman of the company to receive an answer. They claim that the handset will receive the FM radio functionality soon with an update. How soon(!)
Start any audio, either from Google Play Music, AIMP player, DI stream radio... Press earphones volume up/down button to change volume level... Playing stops. You have to bring back your phone from sleep and press play button to continue listening. Annoying...
802.11a is not present. My router at home is dual band, but my phone cannot benefit from it. Annoying...
Thanks for the informations @tataku
I need to install cwm (or twrp) and i need to find custom rom (especially cyanogenmod) to this phone now...
Can an admin make this post sticky if possible to find it easily at the bottom?
FM radio is available now.
Well, I have good news. This morning my device received an official update, "T60_V1.0.0B16". The update contains FM Radio, functioning perfectly. It has also recording option, I didn't try it yet though.
So no need for a custom rom. I appreciate Turkcell for keeping their promise.
The current latest available ROM is Lollipop v5.0.2. I have only one major problem with it, that its call UI doesn't show "forwarded calls". Is there anything i can do? Like, replacing Call UI with AOSP or anything?
I'm still searching custom rom for this phone but cant find...
Therese is some options for ZTE Blade S6 that origion of Turkcell T60 but, cause of it has two sim, i cant be sure, those roms can be usable on Turkcell T60...
Can any body help me about that?
Thanks...
Custom Rom
Any custom roms for this device?

Galaxy Tab A7 - Audio quality loss while using VoIP

Hello fellows. I have been struggling with a specific issue since I bought my tablet. The device is a Galaxy Tab A 2016 (SM-T280) and it runs Android 5.1.1. I have rooted it when the first root method was released, can't really recall it, and I've installed only SD Maid. No mods, no tweaks, no custom bootloaders, no nothing. My problem occures while I'm using VoIP chat (like Facebook Messenger or Google Hangouts) and try to watch a video simultaneously. Although the audio quality is pretty decent on plain media playback, it drops like hell and becomes distored and kind of silent if I start VoIP call at the same time. Has anyone stumbled upon the same issue? Is there any workaround? Thank you in advance.

New APP & IoT required BLE 5.0 and samsung in CODED mode for extra long range

Hi,
Been waiting a long time for Andrioid Oreo to finally be updated onto the Samsung S8 onwards.
Designing an APP whereby we control by simple commands a machine (IoT)
Can anyone confirm if the update does now automatically support the coded low bandwidth data transmission to allow long range? or is there a way to do so whilst designing the APP?
The release notes state Andrioid 9.0 supports new HIGH quality codecs, but I want the LOW quality codec to take advantage of the Bluetooth 5 Range!
Thanks guys,

Parrot drone applications have video issues on Shield

Hi folks. Looking for ideas. I have a Shield Portable with the latest software, circa 2016:
Android verion 5.1
Android security patch level 2016-03-01
Kernel version 3.4.10-gf6c5d7b
[email protected] #1
Fri May 27 07:20:18 PDT 2016
Build number LMY47N.01.00.32208.0110
I'm using some Parrot Bebop 2 drones with both the native Parrott App (FreeFlight Pro, v4.42 or 4.71)
Firmware 4.71
Hardware HW_02
SDK Version 4.0.0.4
as well as AR.Pro 3 in its recent versions.
About a year ago, streaming video to either application started having synchronization problems. The video pane in the apps is highly pixelated and flickers and in some cases, is just frozen. Both software developers don't have an answer. Nothing about Android changed in this period, but both applications have had several revs since it last worked. I'm guessing some function in the SDK has forgotten how to deal with the Shield?
Videos recorded to flash are fine, no problems. I have three drones, all producing the same result. Only live vides displayed in the apps is scrambled.
Just looking for ideas, if not a solution.
Thanks for any help.
pg
Same with my S5. The video feed was good, but now it is laggy and freezes, or disappears entirely, though I maintain control of the quadcopter.
It may be a bandwidth issue. I do seem to hold the visual feed when I use a Mi WiFi+ extender, even though the frame rate is still largely abysmal.

Resources