手機或平板電腦不開機？教你一招不用刷機就能修好，方法簡單實用【我愛電器維修】

hello friends mobile phone or tablet If there is a problem with the system, it cannot be turned on like this we There are many that can be repaired without flashing the machine This method of operation is also relatively simple I use this one today Tablet PC for everyone to operate This is a problem with the system, it cannot be turned on Let's look at its symptoms first Click to start Show boot screen From here on it keeps looping Can't enter the system I see that it has not been cycled like this In situations like this most of us can fix it No need to flash Then we press the key Go to engineering mode regular mobile phone or tablet it enters factory mode We first have to press two keys at the same time It's the power button and the volume up button. mostly like this There are also some parts that need to press the volume down key and Press the power button at the same time Let's first press the volume up and down keys try it Press for a while if there is no response We're going to shut down the tablet first If it cannot be shut down We need to take the back cover off Disconnect the battery cable to it first then connect it Mainly let it shut down first I have a small hole here You can turn it off if you poke it You don't need to remove the back cover ok i'm off now Then we press the volume up button and the power button press down at the same time good Now the English letters have appeared on this screen Now this interface is the factory mode We need to adjust it to the first item Use the volume plus and minus keys You can adjust it with the plus key Adjust this and then adjust the key here The down key is the confirmation key Some are the power button and the confirmation button we enter then draw Here comes a small Android robot Let's hit the power button again Now these English letters will appear We see that these are English letters We adjust it to the two beginning with w put these two options we give it Just double clear it click the volume down button slide down After this, click the volume up button to confirm and then press the key The down key is the volume down key good to here click the volume up key clearing ok this is cleared Then we choose the following just clear it up well cleared After clearing, we click the up button here This is the first step is to restart let's click boot for the first time It starts slowly, we have to be patient Well now the tablet is fixed Friends, if we meet in the future Problem with phone or tablet without booting You can do it according to my method Today's video is shared here see you next time