Hallo, my Tab 2 a10-70 give to me the message in subject when I try to use my sim card.

Welcome to the Community Forums Terry6610!

Nice to have you here!

Try to press the reset button that's next to the SD card place.

You may need to use a small pin (like needle) to push it for 3 seconds.

No worries, doing this step won't delete any of your files.

You may also check this previous post for reference.

Update us how it will go.

Thanks!

Hi Adriel,

my tab seem don't have the reset button....

Hi,

At a guess I'd say the card is corrupted and that is stopping the format,

Things to try,

Download Rufus and use it to fully wipe the card out and then reformat it,

If this doesn't work I'd try another card and consider the original one duff unless it works ok in other devices, also check the card is compatible specs wise, normally up to 256GB is ok but yours might be lower, sadly the whole Lennovo range is a bit hit and miss with ext SD cards, some work for a while and then corrupt, others simply corrupt in minutes, the speed and class is important and after my own little experience with this I'd say get a card with minimum read writes of 50/100, tablet appears to be too fast for slow cards and that's when things go south, hth.

i already tried to reset using the small button beside the sd card slot...at first it works....3g and sim is already working...but when i remove the sim then it pop up sim illegal again...it wont work anymore even i reset it again ..please help me fixed my tab...thanks in advance...

@ hyzel wrote:

i already tried to reset using the small button beside the sd card slot...at first it works....3g and sim is already working...but when i remove the sim then it pop up sim illegal again...it wont work anymore even i reset it again ..please help me fixed my tab...thanks in advance...

Hello @ hyzel!

Thanks for posting here at the Community Forums!

What Lenovo device are you using?

Can you please provide its MTM (machine type-model) number for us to check its specifications?

Also, does your device still boots up?

We'll be waiting for your response.

Thanks,

Adriel_Lenovo

Lenovo Support

@ hyzel wrote:

thanks po...its lenovo a3300-hv tablet...

Thanks for providing your device's details @ hyzel!

Turn on your Tab A7-30 using the Power button and see what you'll get on the screen.

If the android device is unable to power on, try the following to perform factory reset:

1. Ensure the device is turned off and not connected to any charger.
2. Press and hold the correct keys to boot the device into recovery mode. This will vary from device to device. Normally there are three key combinations to enter recovery mode for Lenovo android tablets:
   • Volume Up + Power
   • Volume Down + Power
   • Volume Up + Volume Down + Power
3. Navigate to Wipe data/factory reset or Reset factory.
4. Press Enter. Factory reset will start automatically. Wait until finished.

Update us how it goes.

Thanks,

Adriel_Lenovo

Lenovo Support

Halo I experienced a similar thing where I couldn't change the sim card, the main sim card came in, but when I replace it with a different sim card there is no network, a notification always appears that "illegal simcard pop up shutdown in 30 seconds" please for a7-30hc device