Is the phone not fully charged? Do not mix and match the battery file with the kernel.

According to battery.com.cn, there are mobile phone users who have charged the battery for a long time but are not satisfied. Why?

First, analyze the reasons for the dissatisfaction of mobile phone battery

Moto launched defy mobile phone (that is, mb525, me525) after the big sale, followed by the upgraded version, defy+ (ie mb525+, me525+), this model was later renamed mb526 (for the unity of expression, I will be unified to mb525 and mb526 model). Mb526 overclocked cpu on the basis of mb525, increased battery capacity, increased battery voltage, unfortunately, we now brush the third-party modified rom based on mb525 development, they certainly do not know how to deal with mb526 Large-capacity battery, but with the way to deal with mb525 battery, which caused the mb526 battery to be full of charge (here explained the battery judgment: charging stops because there is a charging limit voltage, that is, when the voltage reaches the specified value, it will not Will press up again, to protect the battery, and the battery itself will report its status to the system, so there is such awkward situation on the mb526: the battery says, I am not full, add some voltage, the system says Oh, the voltage is already 4.1, and then you have to explode! So it will continue to charge under the 4.2 warning line, and because the voltage is not enough, the battery will never be full......).

2, the principle of correcting the battery problem

First of all, we need to understand that the system kernel and SV version (the so-called BL) system kernel is well understood, that is, the version of the Android system. However, it should be reminded that the 2.3.4, 2.3.6 and the like displayed in the system information are not necessarily the actual version of the system kernel. Like the miui system, no matter what version it displays, it can't change the nature of its 2.2 kernel. The MB526 is a system without a 2.2 kernel. All 2.2 core systems are based on mb525 and are not destined to solve the MB526 battery problem. So you can correct the battery problem by replacing the 2.3 core and battery files of the MB526.

When I got here, I think you should have a clear understanding of the battery problem. Now let's talk about the solution. In a word: "one-to-one correspondence", "row" to "row", "water" to "water", "where" to "where". Is the kernel and battery files to be one-to-one correspondence, from the official package to extract pairs, can not be arbitrarily mixed, licensed with the licensed rom extraction of the kernel and battery files, parallel imports of the water core of the battery file, and it is recommended to consider extraction The kernel and battery files for the corresponding sales location.

Two important notes:

figure 1

1, brush 2.2 kernel does not brush the battery patch, the current battery patch is based on the 2.3 kernel system. 2.2 kernel system used in the MB526 is a pure tragedy, do not expect to solve the charging problem. If you must brush the battery patch, then there are only two results, one is BL Err, the whole process of starting the SBF, one is the card M, there is a chance to brush back.

2, after brushing the battery patch, the phone is equivalent to the new machine out of the assembly line, the first charge must be fully charged to establish the battery status file, I am directly plugged into the original charger (it seems that the original charger output voltage is 5.1 v, higher than the general usb standard 5.0v voltage is 0.1v, prudent to establish the battery state for the first time or with the original charger) inserted overnight (12 o'clock to 7:00 the next day), the voltage is 4.35x In the range of ~4.37x, it should be the limit voltage of the system. Unplug the phone to use, use the phone to prompt charging, then plug in the original charger and plug it in for one night. In the morning, I saw the expected result, which is the first picture: charging 100%, and the voltage is 4.320, which is either coincident Integrity, or the system is charged after the recognition and calculation of the predetermined voltage value. At this point, the charging problem is perfectly solved.

When you brush the battery patch, you will automatically delete /data/battd and /data/system/batterystats.bin.

And update the battd file and boot.img under /system/bin

Note: The full battery voltage of defy+ is around 4310. Different batteries will have slight differences. You don't have to tangled this, as long as the 430X is normal~

The Swaging Machine is for connection of pipe and connector.