Nokia 6020 can t turn on, Nokia 6730c can t turn on, it vibrates twice and doesn t respond

It should be that there is something wrong with the system, and it is recommended to check the machine.

There are two types of lattice machines:

1. Soft lattice machine.

This is the lattice machine method that S60 machines have.

There are several ways to do this:

1) The command operation is to enter *, the original password 12345.

2) Or go to the settings to do a factory reset, and the password is the same as above.

3) Or you can use software to format it, such as systemtool, etc.

Under normal circumstances, you can press and hold the pen key to enter the safe mode when booting up, so that you can operate under a clean system and avoid the influence of some self-starting software.

In addition, it should be noted that if some software such as Q9 and T9 fonts are running when booting and starting the permanent memory, it is invalid to format them with this method. You need to close the corresponding Q9 before it can be formatted successfully.

2. Hard-grid machine.

This method only tries Symbian 7 phones, such as 6600 7610.

Operation method: When the power is off, press the main dial key + * key 3 keys at the same time, until the "formatting" sample appears on the screen, and the formatting begins.

This formatting is more thorough and does not cause invalid formatting.

After formatting, all mobile phone C drives have been restored to the state when they left the factory, of course, including your text messages and **book, so you can back up the **book before formatting, and the commonly used is the business card holder backup software.

If the lattice machine can't be solved, it can only be repaired.

Is it that your battery is charged when there is no power at all, so your battery can't be charged, just go to the after-sales service to take a look twice. If it is within the warranty period, it is free to repair.

Go to customer service to flash the machine... The most realistic.

If the mobile phone software fails, take the guard to go and flash the machine, and everything will be OK.

If there is a problem with the mobile phone software, go to the maintenance department for testing.

Send it to the maintenance department for a check-up.

Give you an official website and see if it helps you.

You still have to enter the password after the grid machine restarts

No need to fix it! CPU problem! It won't take a few days to fix it.

Generally, the mobile phone cannot be turned on for the following reasons, which can be self-checked.

1) Check whether there is a virus on your phone.

The phone suddenly fails to turn on, it is likely that it is a virus. Brother Bei can first use the mobile phone security guard to scan and disinfect the mobile phone, and clean it up.

2) Unload some unnecessary software.

If there are too many mobile phone installers and too many software running at the same time, it is easy to fail to operate, resulting in the phenomenon of failure to turn on.