Database Develop

30MB vs 10MB G vs N

Ok just realised my internet speed is Max 10mb after calling up virgin they offered me 30mb and a new n router/modem..
My question is first of all how much difference will I notice with the speed increase and is a n router really needed for devices like my phone? I mean I seem to get same speed on my wireless devices as my Ethernet connected devices..so just a upgrade to n would be useless unless I upgrade to 30mb?
Sent from my Nexus S running MIUI using XDA premium

upgrade to 30mb

Every wireless client on your AP will halve the maximum throughput.
Wireless G Max rate 54Mbps
So get 3-4 devices and your maximum wireless bandwidth will be below your 10Mbps uplink.
Wireless N Max rate is 300Mbps
Do the math here.
Wireless N also has MIMO which will offer better bit rates in more situations/ranges.
Also very important to note that you'll more or less never see 300Mbps on wireless N. FCC rules stipulate 20MHz channels in the presence of other devices, so its more like 150Mbps max. You will almost never see max rate on Wireless G either, but its more likely then Wireless N.

[INDIA] No AC Wi-Fi in Moto G2 (2014)?

Hi,
I am planning to buy this device, but the Flipkart listing shows only b/g/n. Considering Wi-Fi is the only upgrade to the last year's moto G, can anyone tell me whether this is indeed true (i.e. no AC Wi-Fi for Moto G2 India)?

Bump Guys. Anybody?

Yes it's true. There is no ac band support
http://forum.xda-developers.com/moto-g-2014/help/wifi-seeing-5ghz-networks-t2883428

bhavin192 said:
Yes it's true. There is no ac band support
http://forum.xda-developers.com/moto-g-2014/help/wifi-seeing-5ghz-networks-t2883428
Click to expand...
Click to collapse
AHHHhhh crap, I have an AC gigabit router. Any recommendations as to where I can get an AC version. I won't mind overpaying a bit.

Is no Wi-Fi + LTE a hardware issue or just disabled in software?

If you are set on having AC WiFi then you'll have to buy another phone with it, there is no Moto G version with AC at this time, you can get 45Mbit/s on the Moto Gs 2.4GHz N so you'll have to weigh up if you have a need for the faster AC or want a 5GHz only network or you want this phone.
If you're happy to pay more then go for the Nexus 5 stock Android and it has AC but it is double the price.

jay2the1 said:
If you are set on having AC WiFi then you'll have to buy another phone with it, there is no Moto G version with AC at this time, you can get 45Mbit/s on the Moto Gs 2.4GHz N so you'll have to weigh up if you have a need for the faster AC or want a 5GHz only network or you want this phone.
If you're happy to pay more then go for the Nexus 5 stock Android and it has AC but it is double the price.
Click to expand...
Click to collapse
Thanks, it just seemed unfair to me that they stripped one of the major upgrades over last year's Moto G.
I have ordered one , but this festival rush has made shipping too slow

Signal strength

I am skeptical of the signal strength of this phone for a few reasons.
1. Battery life is around 12 hours at best with 2+ SOT
2. Signal is almost 90% yellow in the battery graph.
3. Slightly different, but my Wi-Fi signal seems weak. I cannot pickup a strong Wi-Fi signal when I am about 30 feet from the router with 1 wall.
What speeds should I see with xlte on Verizon?

Mine stays in the yellow as well but I get around 16 hours with 4-5 hours screen on time. Here's my phone and my wife's iPhone 5s side by side in my living room. This phone seems to get better signal than any I have used.

Im actually having this same problem on my gs4. Router signal awful and,battery life is horrible... Moto x comes in tomorrow though! Hope i dont,have this issue agaib... On verizon as well

I doubt this phone is even capable of xlte, but I'll do a speed test in better conditions. I've seen signal top out at 91 and dip back to 57. Mind you -57 dbm is perfect signal. I actually left the gs4 because of the signal issues it had, that's how I got this 10 months in my contract. I haven't had any Wi-Fi issues at all. Except that the cellular radios are integrated,I think the internals are top notch.
Sent from my XT1096 using XDA Free mobile app

Heat

Some phones are great to take camping because if you play Asphalt 8 long enough, the back warms up to the ideal temperature that can bake bread. Rate this thread to express the extent to which the Samsung Galaxy Note 20 Ultra stays cool under extended heavy use. A higher rating indicates that even when playing strenuous games for long periods of time, the phone doesn't get uncomfortably warm.
Then, drop a comment if you have anything to add!

Heat is so minimal when using the phone but have tested video extensively or gaming. Heat is nearly non existent in other tasks. I think it is actually a bit too low when charging. Seems they have the charging throttled to keep the battery temp under 100°F which limits charging speed slower than it cloud be.

AndroidPurity said:
Heat is so minimal when using the phone but have tested video extensively or gaming. Heat is nearly non existent in other tasks. I think it is actually a bit too low when charging. Seems they have the charging throttled to keep the battery temp under 100°F which limits charging speed slower than it cloud be.
Click to expand...
Click to collapse
My exynos variant have a high temp at idle and load. Soc idle min 42, normal uses 50-58celsius, max soc temp is 68c.
Antutu scores after loop.
1.run 540k
2.run 520k
3. run 460k

My Exynos is cold in idle, cold in web browsing and warm while playing ragnarok mobile

It heat like a hot fry pan. While using phone normally. if i get call. I can't even touch is to my cheek. Sometimes it feel it will burn my skin.
With my Note 9 this heating issue was even more worst. Due to overheat. I wasn't able to use camera more than 10-15 minutes. Camera app keep stopping because of overheat.
Worst phone brand. Even after having so much innovation. Samsung Note series always disappoint me.

The only time I notice any heat build up at all is when it's on a wireless charger. Charging with the 25 watt included charger there's no heat at all.

When using Camera and try all options , different zooms , Device starts heating and gets to an abnormal temperature , this is affects the 5G signal , as it disconnects the 5G recipient automatically and turns to LTE !!

In my testing, the "Exynos" Note20U is not heating up like the previous Galaxies.

My SD version gets a bit warm just from normal tasks. And my battery life is atrocious :/ I really like this device but I may need to contact Samsung about a replacement and see if I got a defective one.

Exynos version at 120hz, a bit over room temperature screen off, warm when in use and hot when taking pictures. My note 10+ and oneplus 7t pro were never this warm. I'm also getting pretty bad battery life.

Note20 Ultra 5G 512GB Unlocked/Sprint
All around quite warm, charging, viewing, hotspotting.

UHD60 capture definitely gets the transistors in George Foremen mode if you catch my drift.

For mine, heat issue seems exacerbated by being on 5G signal. No heat when on 4G LTE / CDMA Only mode.

Virgo_Guy said:
In my testing, the "Exynos" Note20U is not heating up like the previous Galaxies.
Click to expand...
Click to collapse
Edit:
Forgot to add that it does warm up a bit in mobile data even when usage isn't high.

xdafallguy said:
Note20 Ultra 5G 512GB Unlocked/Sprint
All around quite warm, charging, viewing, hotspotting.
Click to expand...
Click to collapse
Strange. Having used notes since the first, i must say this is the coolest phone ive had. By cool i mean temp - avg cpu is low 30°cs, multiple runs of back to back antutu only got me to 37°c - with performance varience less than 3%.
It didnt heat up much when charging, editing 108mp files, or 4K/60 recording
Of course this is SD 865+ (N986N South Korea), not exynos like my older notes.
But so is yours. Like Jerry Rigs, may be urs has graphite cooling.. I wonder if some phones (like SK version) have the SD chip with copper cooling = which would be the perfect combo...

Note 20 Ultra Exynos990 heat Up so much. I don't understand what samsung is doing with exynos.

Snapdragon HK version here. No heat whatsoever. I am not playing games. The screen sometimes gets just warm when I use extensive tasks (camera, youtube, etc). CPU temperature always below 40C.

UK Exynos990 from official pre-order, so bad in heating and battery life. Warm normal use anything slightly CPU/GPU intensive make the phone as hot as a fry pan.

Note 20 ULTRA 5G 256GB "Exynos" - mine seems cool most of the time. Haven't been able to make it hot even with gaming or using camera.
Seems huge improvement compared with Note 8 in this area.
Sent from my [device_name] using XDA-Developers Legacy app

nipuna said:
Strange. Having used notes since the first, i must say this is the coolest phone ive had. By cool i mean temp - avg cpu is low 30°cs, multiple runs of back to back antutu only got me to 37°c - with performance varience less than 3%.
It didnt heat up much when charging, editing 108mp files, or 4K/60 recording
Of course this is SD 865+ (N986N South Korea), not exynos like my older notes.
But so is yours. Like Jerry Rigs, may be urs has graphite cooling.. I wonder if some phones (like SK version) have the SD chip with copper cooling = which would be the perfect combo...
Click to expand...
Click to collapse
Wow are your temps still that low? How about when wireless charging? I have the South Korean version too and I hit about 40c when wireless charging, and a lot of times it just sits around 35c when doing normal tasks.

Question S21 Ultra Exynos Heating Problem

Hlo guys, Hope you all are doing well.
I bought an S21 Ultra (Exynos) yesterday and it seems to be running hot even during normal usage. It heats up while I charge it (with a 33W Xiaomi charger) and it heats up even more (goes upto 43°C) while I am on a video call. I'm a little bit worried. Is this a faulty unit or just a software issue? Please help me out guys.

maharoof said:
Hlo guys, Hope you all are doing well.
I bought an S21 Ultra (Exynos) yesterday and it seems to be running hot even during normal usage. It heats up while I charge it (with a 33W Xiaomi charger) and it heats up even more (goes upto 43°C) while I am on a video call. I'm a little bit worried. Is this a faulty unit or just a software issue? Please help me out guys.
Click to expand...
Click to collapse
It will do that for a few days. I had the same experience on the first 2-3 days. But the heating issue went away after that. It will still heat up occasionally (just like any other computer) and especially when you do anything involving the camera. All the new apps are constantly writing info, building cache, etc - this should ease off once the initial intense activity has completed. Some heating is bound to happen when charging too.
The only things I would recommend changing for now are: If you don't use 5G or have poor coverage in your area, turn off 5G scanning from Connections setting. This seemed to help me with battery as well as heating. And FHD+ instead of WQHD+ resolution (at least till the heating issue is gone, and then you can play around with settings and see what you like)
My advice would be to just wait for a few days before doing anything drastic or trying to modify stock firmware. If not better by the end of the week, you can explore other options. The phone is just one day old. Just give the software some time to settle.

unfortunately thats just the way it is
am having the EXACT same issues and i had the phone since Feb so - not something that will go away unless Samsung fixes it

enigmaamit said:
It will do that for a few days. I had the same experience on the first 2-3 days. But the heating issue went away after that. It will still heat up occasionally (just like any other compluter) especially when you do anything involving the camera. All the new apps are comstantly writing info, building cache, etc - this should ease off once the initial intense activity has completed. Some heating is bound to happen when charging too.
The only things I would recommend changing for now are: If you don't use 5G or have poor coverage in your area, turn off 5G scanning from Connections setting. This seemed to help me with battery as well as heating. And FHD+ instead of WQHD+ resolution (at least till the heating issue is gone, and then you can play around with settings and see what you like)
My advice would be to just wait for a few days before doing anything drastic or trying to modify stock firmware. If not better by the end of the week, you can explore other options. The phone is just one day old. Just give the software some time to settle.
Click to expand...
Click to collapse
That's comforting to hear. Let me monitor it for another week. Should I continue using the 33W charger? Is S21 ultra capable of handling it? Or should I just buy the Samsung 25W charger? Thanks for the reply dude.

tim2london said:
unfortunately thats just the way it is
am having the EXACT same issues and i had the phone since Feb so - not something that will go away unless Samsung fixes it
Click to expand...
Click to collapse
I hope it gets better for you. For all of us.

maharoof said:
That's comforting to hear. Let me monitor it for another week. Should I continue using the 33W charger? Is S21 ultra capable of handling it? Or should I just buy the Samsung 25W charger? Thanks for the reply dude.
Click to expand...
Click to collapse
I haven't used the Mi charger. Tried with an old warp charger from OnePlus just for kicks and it doesnt super-fast charge the S21U. But that's becasue the propreitary fast charging standards used by different manufacturers are often incompatible.
After some research, I've found that the S21 ultra will not draw any more than 25 Watts of power (even if you use the Samsung original 45W charger). And even that 25W will work with only with a PPS (Programmable Power Supply) charger (USB C to C PPS) - like the 25W Official Samsung charger. There are a few 3rd party maufacturers that make PPS chargers, but I haven't used any of them. I just went ahead and bought the Samsung one, as there was a good discount on it.
Any other charger you use will only work as a slow charger, or a fast charger (15W max) at best if it supports Qualcomm Quick Charge (QC3) standard. For 25W Super-fast charging (it's anything but super-fast, but that's what Samsung insists on calling it) you need a PPS charger, and I would recommend going with the original 25W Samsung charger.

enigmaamit said:
I haven't used the Mi charger. Tried with an old warp charger from OnePlus just for kicks and it doesnt super-fast charge the S21U. But that's becasue the propreitary fast charging standards used by different manufacturers are often incompatible.
After some research, I've found that the S21 ultra will not draw any more than 25 Watts of power (even if you use the Samsung original 45W charger). And even that 25W will work with only with a PPS (Programmable Power Supply) charger (USB C to C PPS) - like the 25W Official Samsung charger. There are a few 3rd party maufacturers that make PPS chargers, but I haven't used any of them. I just went ahead and bought the Samsung one, as there was a good discount on it.
Any other charger you use will only work as a slow charger, or a fast charger (15W max) at best if it supports Qualcomm Quick Charge (QC3) standard. For 25W Super-fast charging (it's anything but super-fast, but that's what Samsung insists on calling it) you need a PPS charger, and I would recommend going with the original 25W Samsung charger.
Click to expand...
Click to collapse
I'll go with the Samsung 25W charger then. Thanks by the way

maharoof said:
I'll go with the Samsung 25W charger then. Thanks by the way
Click to expand...
Click to collapse
You're most welcome.

You can be unfortunate with any SOC in terms of die quality. Some people are simply SOL and end up with crap silicon which results in bad thermals and, if you're rooted, a restricted ability in overclocking or undervolting.
What people can't do is have a crap experience with the thermals on their S21 Ultra (or any other device) and talk as if it applies to every other device of the same model, as in post #3. It doesn't work that way.

one thing i did yesterday (btw may update did not fix the heating issue) was to disable the 5g - keeping in mind i live in an area where there is excellent 5g coverage)
as soon as i turned 5g off - the heating was gone, the battery life increased and the phone felt smoother
now this was also an issue last year on s20 - seems this year is the same
something about the 5g that makes the phone get really hot
try it and see if that works

tim2london said:
one thing i did yesterday (btw may update did not fix the heating issue) was to disable the 5g - keeping in mind i live in an area where there is excellent 5g coverage)
as soon as i turned 5g off - the heating was gone, the battery life increased and the phone felt smoother
now this was also an issue last year on s20 - seems this year is the same
something about the 5g that makes the phone get really hot
try it and see if that works
Click to expand...
Click to collapse
Heating problem while charging is fixed after I started using the original Samsung charger. But I'm still experiencing problems with video calls A 20 minute video call (through Microsoft Kaizala) increases the temperature to 45°C I'm not sure what's the problem. I have turned off 5G as well.

enigmaamit said:
I haven't used the Mi charger. Tried with an old warp charger from OnePlus just for kicks and it doesnt super-fast charge the S21U. But that's becasue the propreitary fast charging standards used by different manufacturers are often incompatible.
After some research, I've found that the S21 ultra will not draw any more than 25 Watts of power (even if you use the Samsung original 45W charger). And even that 25W will work with only with a PPS (Programmable Power Supply) charger (USB C to C PPS) - like the 25W Official Samsung charger. There are a few 3rd party maufacturers that make PPS chargers, but I haven't used any of them. I just went ahead and bought the Samsung one, as there was a good discount on it.
Any other charger you use will only work as a slow charger, or a fast charger (15W max) at best if it supports Qualcomm Quick Charge (QC3) standard. For 25W Super-fast charging (it's anything but super-fast, but that's what Samsung insists on calling it) you need a PPS charger, and I would recommend going with the original 25W Samsung charger.
Click to expand...
Click to collapse
As I'm still experiencing problems with temperature going up in video calls, is there anyway to log the cpu usage and thermals? Maybe that would help in finding out the culprit. The battery life is not that great either. I can't figure out how much SOT I'm getting since the battery page still shows "Learning usage patterns".

i think the heat during video calls is another issue - that is triggered by the actual video processing - i think you will notice if you turn the camera on for shooting a video (not live video calls) you will notice instant heating - i think that is also what is causing this - both frontal and rear cameras have huge sensors and the phone must do a lot of work to compress the live videos + data connection/wifi used during the video
i dont know the culprit but is defo related to the same issue why when taking loads of photo or long vids the phone get super hot
i mean i turn off my video during a call and the heating goes down pretty fast
all in all - it seems the same issues that plagues s20 exynos are still present in the s21 exynos - so not sure what improvements they made cz honestly is as bad as last year!!!

Hey guys, i live in Kuwait and now temps are reaching 45-50°.
I don't expect the device to cool itself and i try as much to avoid using it outdoors or in my car (i have a ****ty AC)
Otherwise while at home and gaming it never exceed 40° ever.
If you dig deep into when you are using and where you will notice.
5g also drain and push temps up waaay to much.
Volte is also a factor.
Btw these are in all phones not only the s21u.
Don't be fooled guys and don't hate the ohone, it's a phone with soo many things and features running simultaneously, it has no fans and no cooling except for the paste lol.
That's my way of looking at it, i might be wrong.
Btw my sister's iPhone 12promax does the same and reach hot temps when used out and camera together.

maharoof said:
As I'm still experiencing problems with temperature going up in video calls, is there anyway to log the cpu usage and thermals? Maybe that would help in finding out the culprit. The battery life is not that great either. I can't figure out how much SOT I'm getting since the battery page still shows "Learning usage patterns".
Click to expand...
Click to collapse
That learning usage patterns will take a few days before it starts showing data.
For thermal logging and control you can use the Samsung Labs module called Thermal Guardian. If labs app is not available in your country, download finelock from play store and get it from there. Search for appx video on thermal Guardian on YouTube for installation details

Guys 40+ something temps are nothing. Just put on a cover, relax, and enjoy the warm beast your phone is.

There is a direct relationship between the amount of power used by a processor and its clock frequency. The higher the performance, the higher the power consumption and heat generated.
Samsung is teaming up with AMD on an improved SoC which is reported to make it's debut on the S22. Hopefully this will eliminate the ongoing defencies with the Exynos SoC.
Redirect Notice
Not only have some of Samsung's major stock holders pressured Samsung to resolve the Exynos debacle, there's even an online petition with over 50,000 signatures requesting Samsung stop using the Exynos Chipsets in it's flagship devices.
Sign the Petition
Stop selling us inferior Exynos phones!
www.change.org
The only other Non-Samsung Smartphone which uses the Exynos Chip is Vivo. All others besides Huawei and a couple of Chinese Brands use Snapdragon which is pretty good indicator for the lack of confidence in Exynos SoC's

This heath issue has to do with my S21 ultra's reboot thing? Once a day...I noticed that,if I install some app outside google playstore(such as vanced etc), my phone will reboot by yourself once a day....

I have no heating issues with my Exynos. Sd 888 has very bad heating issues in all the phones that use it. Stop with the "inferior Exynos" bs already.

bandiere2000 said:
This heath issue has to do with my S21 ultra's reboot thing? Once a day...I noticed that,if I install some app outside google playstore(such as vanced etc), my phone will reboot by yourself once a day....
Click to expand...
Click to collapse
Look in settings to see if your phone is set to reboot once a day. If it's not, then you have a hardware problem.