Mlais M52 Red Note Review + Root + ROMs + Info

[krouri]

Battery life depends on usage scenarios.

Yes and it seems my usage is a lot like yours. I just put my batter to charge with 4% left, 3 hours screen time, but with 1.5 hours of talk time. How much talk time do you have?

---------- Post added at 06:16 AM ---------- Previous post was at 06:15 AM ----------

OMG people don't be naive. Open your Mlais M52 cover and find out if you can put thicker battery.
And 4600 mAh should be a lot thicker than stock battery.

Also S/N are the same as stock battery. Pure fake.

A member bought it, figured $12.99- is cheap enough to give it a try. He'll report back, even though i unfortunately believe you are right.

 

[raidawg2]

OMG people don't be naive. Open your Mlais M52 cover and find out if you can put thicker battery.
And 4600 mAh should be a lot thicker than stock battery.

Also S/N are the same as stock battery. Pure fake.

Oh no doubt its not 4600 mah.. I never expected that, but If it is even a bit bigger than the stock battery that would be nice. If not at least I have a spare battery for travel.

Could this battery be true?
Idk, but seems to good to be true, right?

No probably not true, but if you want to give it a chance you should buy it from their Aliexpress store, at least that way you have buyer protection, and comes to the same price because vifocal charges shipping on their own website but not on aliexpress.

http://s.click.aliexpress.com/klk/zNz7QNFQ3

 

[jer213]

I'm getting 2 M52's in the mail tomorrow, one for me and one for my dad. I'm going to stay with KitKat until Lolipop is stable. I will report back on battery life and quality of them.

 

[krouri]

I'm getting 2 M52's in the mail tomorrow, one for me and one for my dad. I'm going to stay with KitKat until Lolipop is stable. I will report back on battery life and quality of them.

Thank you.

 

[KEROLiUKAS]

Xposed running on my M52. Amplify and GravityBox working.

 

[raidawg2]

Xposed running on my M52. Amplify and GravityBox working.

can you let us know how the battery improves with Amplify? I have never used it, but I am thinking of getting it if it has a significant improvement on battery drain.

 

[ledocbio]

I think batteries take time to calibrate. I have been on 1% for last 30 minutes of constant use. overall it seems very decent in terms of battery time, though I have had heating issues with it

 

[P00ky_]

Hello,

can some tell me how i can flash stock rom i have now 20150327
@needrom have 20150328 ( this version ) is also OTA compatible.

i tride this way but don't work, maybe i forget something?
- Unpack FlashTools, and Click on Flash_tool.exe
- Select a the MT6752_Android_scatter.txt in ROM
- Wait file to be added into Flash Tool
- choose Option->USB Model,click USB Model
–> Choose Option->DA DownLoad All->Speed->High Speed, click High Speed
- Turn off your phone, remove the battery.

- "Press F9 (hit Download button)" OR " if upgrade ROM Firmware->Upgrade "
- and connect your phone into the computer via USB data cable.
- The process will start and a red progress bar will appear after color purple, yellow.
- And green circles display
- Finish !

- You can now safely disconnect your phone and turn it on.

 

[radier]

When the second OTA will be available all of us will be able to download it no matter what software version you have.

Taptaptap Mlais M52

 

[knank]

Xposed running on my M52. Amplify and GravityBox working.

Can yo make a tutorial or a reference of the files used?

 

[P00ky_]

When the second OTA will be available all of us will be able to download it no matter what software version you have.

Taptaptap Mlais M52

Ok. Thanks radier. I think mlais have send a ota update like 2 weeks ago it was like 7mb fix some camera issue but i can not find it. I was reading it on gizchina.com

Update: Mlais have informed me that they have alread sent out an update for the Mlais M52 that improves camera performance. Hopefully this is a sign of future OTA updates to come
http://www.gizchina.com/2015/03/25/mlais-m52-red-note-unboxing-and-first-impressions/

Verstuurd van mijn M52_Red_Note met xda Forum

 

[ledocbio]

not sure if this applies to everyone, but here is a trick i use whenever i get a new phone:
i charge the phone full, without using it, or at least 90%
for the first 24-48 hours: after that i use the phone a bit, then i charge it
the calibration might be screwed up a bit, but usually the battery gives me good standby times this way...

again, this is just a hack, no scientific knowledge behind this, might just backfire.

note that only do this in the beginning, in the long run constantly charging and discharging is very bad

 

[Gwanatu]

Unfortunately these update tools don't seem to play nice with Windows 10. I can't get any of them to even open or work right no matter what I do. I'll see if I can find another computer running an earlier version of Windows to try it but it seems like the update might not be worth bothering with at the present time given the insane list of game-breaking bugs.

 

[ledocbio]

What do you guys think of the audio quality with headphones?

 

[PabxH]

ATTENTION: The Lollipop update is available from Mlais, but please check out the list of bugs below before updating.
Click here for more details (Thanks to P00ky): http://xdaforums.com/showpost.php?p=60169820&postcount=119

............**********************
http://www.gearbest.com/cell-phones/pp_169222.html

Mlais M52 Red Note Battery: $4.50 with free shipping (Just remember it's probably not 3200mAh but probably lower)
http://www.gearbest.com/cell-phones/pp_169221.html

I want to thank you! I will receive my m52 on monday, and I am very exited. I hope we can make a good community over this phone.

 

[xmint]

I've finished the testing of the M52's battery. The tests were done on two replacement batteries that I purchased + one from a friend's M52.

All the batteries were charged by a charger that has the correct CC/CV curve and can charge to 4.35v. The two that I bought, both had over 10 cycles including a deep initial cycle. They were charged to their rating of 4.35v at a initial charge setting of 0.3mA. They were then given 5 minutes rest then discharged with a load of 0.2mA.

The results were interesting, the best figure was 2387mAh Worst was 2201mAh.

Of course not going to get anywhere near those figures when installed in the M52, firstly on three M52 s that I know of, and I presume it correct, they only are charged by the phone to an indicated 4.2v. Which is on my phone actually less when I measure the battery on a DMM. In fact I believe that my phone has problems with the charger.

I believe that when the indicator light goes green (90%) it actually indicates that the CC phase of charging is complete, it is at this point that I think the charger is having problems with the CV phase of charging, getting stuck, not finishing or jumping after a long time on something like 92% to finished in less than a minute. I am not going to do any more testing till the Lollipop update arrives. If it still happens I will test my phones charging and see exactly what is happening during charging.

I have sent Mlais an e-mail asking why if they have a 4.35v battery they only charge it to 4.2v but to date no reply.

To explain the picture, I forgot that the discharger had a time limit that I had set, so the tests were done in three phases of 320mins 305mins then to the end.

 

[krouri]

Thanks for doing the test! I have BatteryDr. installed, and when the charging shows 100% it tells me that the phone is now trickle charging for another 10 minutes for improved battery usage. Makes any sense?

---------- Post added at 04:24 AM ---------- Previous post was at 04:20 AM ----------

What do you guys think of the audio quality with headphones?

Not good enough IMO.

 

[xmint]

Thanks for doing the test! I have BatteryDr. installed, and when the charging shows 100% it tells me that the phone is now trickle charging for another 10 minutes for improved battery usage. Makes any sense?
---------- Post added at 04:24 AM ---------- Previous post was at 04:20 AM ----------

Cheers!

I presume what you see is the last bit of charging which would be at a low level. But if the charge complete message has displayed then there should be no trickle charge after, bad idea.

The problem with the percentage figure is that it is simplistic, shows only part of the story. Voltage interpretation while discharging, but I presume data from the charging circuit + voltage whilst charging.

The way a lion battery is properly charged is firstly a constant current is applied, the battery's voltage will climb until it reaches the target voltage, at that point the charging current starts slowly lowering, leaving the voltage at its target. The current lowers till it reaches a figure set at 10% of the initial charge current. At which point the charger should stop charging.

I believe that this phone charges the battery till it reaches 4.2v (percent meter says 90%.) turns light green as it goes into the constant voltage phase. This very important phase should take a fair bit of time as the internal resistance (bat) increases and the current lowers. I have a Panasonic data sheet somewhere with some graphics that illustrate the above. I could post a pic of that?

If BatteryDr shows the current level/voltage you could check to see if it actually does the correct charge method.

 

[krouri]

So the way it works on mine is,at 90% it's green but still shows it's charging then it says 100%,and BatteryDr says 10 minutes trickle charge. Then it says done, and the phone's internal message system says Disconnect charger or something like that i can't remember. What's interesting if this makes any sense, is that the battery is lasting longer then it did when i first got the phone, if that makes any sense. And my usage hasn't changed.

 

[xmint]

So the way it works on mine is,at 90% it's green but still shows it's charging then it says 100%,and BatteryDr says 10 minutes trickle charge. Then it says done, and the phone's internal message system says Disconnect charger or something like that i can't remember. What's interesting if this makes any sense, is that the battery is lasting longer then it did when i first got the phone, if that makes any sense. And my usage hasn't changed.

Not sure why Bat'Dr says trickle charge. Once the charge current reaches its set value it should just stop. But in the order you say, it's fine.

If what I presume is correct and the green light is an indicator of the CV phase, then roughly the CV phase should very very roughly take as long to complete as it took to get from empty to the green light showing. So 90% till charge completed should take as long as 1% to 90%. Very roughly

What you say about your battery lasting longer is as it should. That is why in my tests they had at least 10 cycles.

A battery should be deep cycled first of all (fully charged then discharged almost flat) I have experimented and deep cycled a couple or more times first off to see if it did much good, but on the cells I tried (Panasonic 18650s) it did not seem to make much difference.

Here is a chart that might make things clearer (red lines easier to follow)