Develop Bugs

[Q] huawei p6 cpu

I connected my phone with adb and I found a folder named init.mtk6252.rc. I think mtk6252 is the name of the chipset, because there is a company named mediatek that makes chipsets and the series of the chipsets are named like this... mtk6252,mtk6592,mtk6753 etc..... However huawei p6 contains hicilicon k3 chipset.. Many cheap china made phones contain mediatek chipset. is it possible that this phone is not original but a fake china made phone ?

Problem solved. MTK6252 is a GSM/GPRS chipset not a cpu chipset. MediaTek MT6252 is a GSM/GPRS/EDGE SOC (system on a chip) for entry-level multimedia handsets. Also supports MP4 video recording and playback, and also incorporates a resistive touch-screen controller. Case closed.

Is there any HW difference between Mi Max/Max Prime Chinese and Global?

Hi everyone,
I know the Xiaomi Mi Max is officially sold in China and India.
Apparently the version from China is compatible with several LTE Bands worldwide.
My doubt is: As of now, is there any hardware difference for this device sold in China / India / (wherever else it may being sold officially)?
Also, is there any differenze in size between Mi Max (32/64GB rom, 3GB ram) and Mi Max Prime (128GB, 4GB ram)?
I am trying to understand this in order to order an appropriate cover
Thanks in advance

dragXDA123 said:
Hi everyone,
I know the Xiaomi Mi Max is officially sold in China and India.
Apparently the version from China is compatible with several LTE Bands worldwide.
My doubt is: As of now, is there any hardware difference for this device sold in China / India / (wherever else it may being sold officially)?
Also, is there any differenze in size between Mi Max (32/64GB rom, 3GB ram) and Mi Max Prime (128GB, 4GB ram)?
I am trying to understand this in order to order an appropriate cover
Thanks in advance
Click to expand...
Click to collapse
there is no difference with respect to hardware btw the chinese & indian manufactured mi max.they have the same hardware save for a few minor differences in make of camera,touch panel,screens,camera sensors etc.although they are frm diff manufacturers, they are specced the same.the diff comes in form of preloaded os.again though both are the same,chinese ones will be preloaded with chinese stable firmware and indian units(which i personally own) have global stable firmware.the major diff in terms of software would be chinese localized app and absense of google apps in chinese stable,while in global stable comes with google apps preloaded.that where the differences end.the overall physical dimensions remain the same.you can cross install firmware if u wish
now coming to the diff btw the 3/32 vs 4/128 there is slight diff in soc.the 3/32 called "hydrogen" has hexacore(2x1.8ghz a72+4x1.4ghz a53) snapdragon 650 while the 4/128 called "helium" has octacore(4x1.8ghz a72+4x1.4ghz a53) snapdragon 652soc.the gpu is the same in both versions.again there will be no diff in the physical dimensions btw the 2 models

wingryder said:
there is no difference with respect to hardware btw the chinese & indian manufactured mi max.they have the same hardware save for a few minor differences in make of camera,touch panel,screens,camera sensors etc.although they are frm diff manufacturers, they are specced the same.the diff comes in form of preloaded os.again though both are the same,chinese ones will be preloaded with chinese stable firmware and indian units(which i personally own) have global stable firmware.the major diff in terms of software would be chinese localized app and absense of google apps in chinese stable,while in global stable comes with google apps preloaded.that where the differences end.the overall physical dimensions remain the same.you can cross install firmware if u wish
now coming to the diff btw the 3/32 vs 4/128 there is slight diff in soc.the 3/32 called "hydrogen" has hexacore(2x1.8ghz a72+4x1.4ghz a53) snapdragon 650 while the 4/128 called "helium" has octacore(4x1.8ghz a72+4x1.4ghz a53) snapdragon 652soc.the gpu is the same in both versions.again there will be no diff in the physical dimensions btw the 2 models
Click to expand...
Click to collapse
Thanks for your answer.
Is it correct to say I can install the Global rom on a device coming from China, and get the very same result (besides minor hw differences) as buying it in India (for example)?
Also, since I understand you have the global edition , could you say if it supports full disk encryption on MIUI 8 (from settings > privacy or something like that), in a way that without unlock code the phone doesn't start at all?
(as reference, there is also this - unanswered - question about this topic :http://c.mi.com/in/thread-4401-1-1.html)
Thank you

yes, you can. but you must look for the right on coz always 2 global roms comes.
One for the Mi max with 16 and 32 gb (hydrogen) or the rom for the 32 and 128 gb mi max (helium).
greets
Peter
PS: Best rom ever, no more need RR
LED-Control, auto Callrecord, dt2wake, fast, super battery, so stable!
xiaomi.eu Miui 8.1

dragXDA123 said:
Thanks for your answer.
Is it correct to say I can install the Global rom on a device coming from China, and get the very same result (besides minor hw differences) as buying it in India (for example)?
Also, since I understand you have the global edition , could you say if it supports full disk encryption on MIUI 8 (from settings > privacy or something like that), in a way that without unlock code the phone doesn't start at all?
(as reference, there is also this - unanswered - question about this topic :http://c.mi.com/in/thread-4401-1-1.html)
Thank you
Click to expand...
Click to collapse
for the 1part of the question answer is yes
for the 2nd part of the question,as far as i know,since the data partition is encrypted, after the device boots up,u'll be presented with the password (login) screen,and unless u enter the the password u wont see the homescreen,and no one will be able to access ur data.the only way to use the device is to format the data partition with custom recovery and install new new rom at which point all ur data would be permanent ly erased.

We can't reach the Galileo satellite in Europe.

Hello everybody,
I wonder why we can't reach the Galileo satellite here in Europe, while the our snapdragon 820 processor support this satellite.
The same says also Qualcomm in they site here:
https://www.qualcomm.com/news/relea...pport-galileo-across-snapdragon-processor-and
I'm using navigon and also a test software from play store, and compare with galaxy s8 it has support Galileo, our Zuk z2 plus hasn't.
Maybe somebody knows why?
Thnx!

The CPU may support the function but its a OEM choice to "enable" the function on the phone. Since the phone isnt made by just the CPU, in order to accommodate others functions for another ICs, or to "cripple" functions based on region only, or even if they dont want to pay royalties for the use of the tecnology, they may not implement all the functions the Chipset supports. This is true for the Quick Charge 3.0, for instance. Commonly used on all SD820 phones, isnt avaiable on Zuk Z2 saddly...

nameless-- said:
The CPU may support the function but its a OEM choice to "enable" the function on the phone. Since the phone isnt made by just the CPU, in order to accommodate others functions for another ICs, or to "cripple" functions based on region only, or even if they dont want to pay royalties for the use of the tecnology, they may not implement all the functions the Chipset supports. This is true for the Quick Charge 3.0, for instance. Commonly used on all SD820 phones, isnt avaiable on Zuk Z2 saddly...
Click to expand...
Click to collapse
Thnx for your answer, at least I know why!
And it is sad.For the rest and for €164 is wonderful phone ?

I was wondering the same. According to gsmarena, no phone exists with a snapdragon 820 (MSM8996) and supports Galileo. Therefore I doubt that Qualcomm offers this driver/software to manufacturers for our soc.

Since Qualcomm is american, and Galileo is in direct competition with the GPS, they may have disabled it to cripple the ability of the EU to spread the compatibility for its positioning system.

DavidWel said:
I was wondering the same. According to gsmarena, no phone exists with a snapdragon 820 (MSM8996) and supports Galileo. Therefore I doubt that Qualcomm offers this driver/software to manufacturers for our soc.
Click to expand...
Click to collapse
Nope only the Zuk Edge supports it.

It seems that the Chinese Beidou satellites can be used without problem on my Z2. However I can't see Galileo ones either. There're only three types of satellites, probably, on the GPS test app: GPS, GLONASS, BEIDOU.

AImark benchmark score half down in P vs. O - no Hexagon/DSP hardware support?

Hi,
Running AIMark (search for it im Play Store, I'm not allowed yet to post links) which also Anandtech uses for ML/DNN benchmarking gives me in Android 9 ca. 7800 points, only half of the score as when running it on another Moto Z2 device still with Android 8.0 where the score is almost 14000!
The benchmark uses the Snapdragon Neural Processing Engine (SNPE) for ML interference which can support DSP/GPU(?) acceleration. Without the required libraries from Qualcomm only the CPU cores will be used, which of course is slower.
The score for Moto Z(1) is with 13500 almost the same as for the Z2 what makes sense as both Hexagon DSPs 680/682 are quite similar. A newer 845 I tested (Sony, Android 9, Hexagon 685) has a score of ca. 19000.
In the Anandtech article (I can't link) the scores of LG V30 (835) vs. S9 (845) are similar in the same way. But a Pixel 2 XL, presumely without the Hexagon/DSP hardware support libraries looks really bad there.
Could somebody with an Android 9 upgraded Z2 try out the benchmark and tell me his/her score? This Chinese app wants access to calls and media (Maybe it only collects device name/IMEI etc. for statistics/ranking but who knows?) so be careful when you use it with your everyday phone.
If this is not a specific problem of my device then I guess the SNPE acceleration suffered a major regression for the Z2 (835) in Android 9 or some libs for hardware acceleration are missing .
Can someone else confirm this?
Thanks, M.

Question about the chipset. 730 or 730G.???

Please help me confirm. Galaxy M51 has only 1 version using 730 chip or there are 2 versions using 730 and 730G chips to distribute to each separate region.?

KimUyLong said:
Please help me confirm. Galaxy M51 has only 1 version using 730 chip or there are 2 versions using 730 and 730G chips to distribute to each separate region.?
Click to expand...
Click to collapse
Snapdragon 730G

Keran_3066 said:
Snapdragon 730G
Click to expand...
Click to collapse
Samsung set to launch snap 730 version on my county. While there have been some say that these two processors are not too different in terms of support custom Rom. But with a well-known tradition of poor developers support. I don't think the M51 snap 730 is a smart choice. I think poco X3 is best choice in my country

KimUyLong said:
Samsung set to launch snap 730 version on my county. While there have been some say that these two processors are not too different in terms of support custom Rom. But with a well-known tradition of poor developers support. I don't think the M51 snap 730 is a smart choice. I think poco X3 is best choice in my country
Click to expand...
Click to collapse
Then it seems like the European version launched with the 730. The main difference is that the SD 730G is more optimized for gaming where the GPU is clocked higher than the SD 730.
AFAIK everywhere else has the SD 730G

I got an brazilian one with 730 chipset, while some other shops here announce it as 730G