Mobile phone defective - messages received from old mobile phone?

A bit of a complicated thing:

On my mobile phone (Huawei) the power button is broken, but it is turned off and no phone that turns up when charging again. So 100% battery, but not to turn on. Jackpot. -.-

Since today is a holiday, has no cell phone shop open, which could fix this problem, hopefully, and I really need my phone now, because I can't communicate with anyone.

But now still have a replacement phone.

My question: If I enter the SIM card into the new phone and download WhatsApp, I will receive the messages that I would have received on my cell phone in the last 2 days, if it had worked (it was last in flight mode).

Otherwise, I'm waiting for and hope he can restart my phone so that these messages are not lost.

Wait until tomorrow.

You get the news of the last 30 days you have not yet retrieved… But on the replacement phone then make a backup in the cloud, so you then have everything on the other phone