What is TX RX?
tx rx is type of connection which will help to you to connect your phone with pc for software operation. its just a type of connection name.
what is cpu?
Central processing unit. A parts of phone. its type a head of phone. all phone have cpu but for china phone cpu is important for repair this phone. china phone have various type of cpu.
why cpu is important for china phone?
All other phone have cpu, uem, upp but for china phone cpu is important for repairing because various china phone cpu support various tool/device when you do software operation in phone.
How to know cpu type/model?
now many of device auto detect cpu type so no problem to know which cpu use in this phone which you want to repair. also you can open the phone and can see what cpu use in phone/what name write on cpu.
what is flash chip and RAM?
flash chip store phone software in it. and RAM is extra built in memory which give space to phone and flash chip to extract phone software and operating in his memory when phone is open/running. some china phone flash chip and RAM include in one chip and some in cpu. so if your flash area or ram area is damage in flash chip, you must need to change total chip (CPU, Flash IC,) using many type of companies chip with under various model name, as like Samsung, Toshiba, Intel, ST etc
Flash chip name/model is important for china phone as like cpu?
Not like cpu but its important because when flash china phone if we not know what flash chip use on it, we can find perfect phone flash file.
what problem with china phone model name?
model name is not a big matter for china phone. because with same name have many many phone with deference pcb, pcb design, cpu, flash chip, gate up, software etc.
What need to know about a china phone when we repair?
1. CPU Type
2. Flash Chip model
3. Original software/flash file version.
4. Phone TX RX.
Flash file version is important for china phone?
Must. its very very important for china phone because though you lost your original (when manufacture company published phone) flash version or not know which file have in it first time, you got problem when you flash your phone. for flashing with wrong version/model flash file you got this type of problem-
1. Flash done but phone dead
2. white screen (no incoming/out going call)
3. white screen (with incomeing/outgoing call)
4. Keypad not work
5. Sim not valid
6. Sim blocked
7. Phone hang after power on
8. no network
9. have network but show emergency (this problem also do for power ic or bad connect sim or sim connector problem)
10. phone restart continuously.
etc.
Which tool or device?
many of free tool published in market for mtk, infineon, ad, spreadtrum, sky etc. but alwayes device give you a complete solution.
flash chip store phone software in it. and RAM is extra built in memory which give space to phone and flash chip to extract phone software and operating in his memory when phone is open/running. some china phone flash chip and RAM include in one chip and some in cpu. so if your flash area or ram area is damage in flash chip, you must need to change total chip (CPU, Flash IC,) using many type of companies chip with under various model name, as like Samsung, Toshiba, Intel, ST etc
Flash chip name/model is important for china phone as like cpu?
Not like cpu but its important because when flash china phone if we not know what flash chip use on it, we can find perfect phone flash file.
what problem with china phone model name?
model name is not a big matter for china phone. because with same name have many many phone with deference pcb, pcb design, cpu, flash chip, gate up, software etc.
What need to know about a china phone when we repair?
1. CPU Type
2. Flash Chip model
3. Original software/flash file version.
4. Phone TX RX.
Flash file version is important for china phone?
Must. its very very important for china phone because though you lost your original (when manufacture company published phone) flash version or not know which file have in it first time, you got problem when you flash your phone. for flashing with wrong version/model flash file you got this type of problem-
1. Flash done but phone dead
2. white screen (no incoming/out going call)
3. white screen (with incomeing/outgoing call)
4. Keypad not work
5. Sim not valid
6. Sim blocked
7. Phone hang after power on
8. no network
9. have network but show emergency (this problem also do for power ic or bad connect sim or sim connector problem)
10. phone restart continuously.
etc.
Which tool or device?
many of free tool published in market for mtk, infineon, ad, spreadtrum, sky etc. but alwayes device give you a complete solution.
Firmware
MediaTek sells a reference firmware platform to its licensees which they all use (after varying levels of modification). What this means is that all MediaTek firmwares are based on the same code base, and thus all MTK phones have similar, if not identical basic features. For example:basic UI code, such as language handling, input handling, and resource handling code will be the same. This is why a single MTK Firmware Editor can open almost all MTK firmwares, and successfully edit the resources contained within.
This reference platform comes with no support for external executables. All functionality is linked into the firmware at compile time, so adding new features or applications afterwards is infeasible, and without months of reverse engineering, by skilled developers, impossible.There are no such projects so at the time of writing there is no way to run outside code on the MTK platform (unless the firmware of interest has Java support, or NES emu compiled in).
Q: Can I add new apps to the phone?
A: No. (Unless your firmware has Java support or NES emu)
Q: Can I create my own apps that run natively on the phone’s CPU?
A: No.
Usually release firmwares come compiled with a specific set of drivers for the target hardware configuration. Different model phones will not have the same type of LCD display, FM tuner chip, BT chip, camera(s) etc.. But there’s no guarantee that same model phones, manufactured on different dates do either. Indeed same model phones manufactured just a few weeks (or days) apart can have different hardware. It is because of this that 5 different firmware versions of Model X could have been release not because of firmware improvements/bugfixes, but because the hardware in the phone has changed and new drivers were required.
What this also means is that most of the time trying to “upgrade” the firmware on these phones will result in bricking, or the loss or malfunction of an attached device (display, camera(s), BT, etc.)
For example: White screen, black screen, no screen, after flashing, but hearing the phone play the startup chime is because the phone’s display is either different, or connected differently in hardware, and the driver in the firmware we’ve flashed isn’t able to handle it. Similarly, loss of camera support, or malfunctioning keys are all symptoms of this.
MediaTek sells a reference firmware platform to its licensees which they all use (after varying levels of modification). What this means is that all MediaTek firmwares are based on the same code base, and thus all MTK phones have similar, if not identical basic features. For example:basic UI code, such as language handling, input handling, and resource handling code will be the same. This is why a single MTK Firmware Editor can open almost all MTK firmwares, and successfully edit the resources contained within.
This reference platform comes with no support for external executables. All functionality is linked into the firmware at compile time, so adding new features or applications afterwards is infeasible, and without months of reverse engineering, by skilled developers, impossible.There are no such projects so at the time of writing there is no way to run outside code on the MTK platform (unless the firmware of interest has Java support, or NES emu compiled in).
Q: Can I add new apps to the phone?
A: No. (Unless your firmware has Java support or NES emu)
Q: Can I create my own apps that run natively on the phone’s CPU?
A: No.
Usually release firmwares come compiled with a specific set of drivers for the target hardware configuration. Different model phones will not have the same type of LCD display, FM tuner chip, BT chip, camera(s) etc.. But there’s no guarantee that same model phones, manufactured on different dates do either. Indeed same model phones manufactured just a few weeks (or days) apart can have different hardware. It is because of this that 5 different firmware versions of Model X could have been release not because of firmware improvements/bugfixes, but because the hardware in the phone has changed and new drivers were required.
What this also means is that most of the time trying to “upgrade” the firmware on these phones will result in bricking, or the loss or malfunction of an attached device (display, camera(s), BT, etc.)
For example: White screen, black screen, no screen, after flashing, but hearing the phone play the startup chime is because the phone’s display is either different, or connected differently in hardware, and the driver in the firmware we’ve flashed isn’t able to handle it. Similarly, loss of camera support, or malfunctioning keys are all symptoms of this.
