If the Redmi Pad Pro cannot be turned on after being idle and charged for a while, it's due to the battery being deeply discharged.
The Redmi Pad Pro is equipped with a substantial 10,000mAh battery, which can become too depleted to power on immediately if the battery level drops significantly. When this happens, the battery needs to be charged for a short period (at least 20 minutes) before the device can power up normally.
This is a standard behavior for many high-capacity batteries, especially when they are deeply discharged. It is important to let the device charge undisturbed during this time to ensure it reaches a sufficient charge level to start up properly.
If the issue persists beyond this period, it needs to be checked for any hardware issues. Please contact the local after-sales service center for further inspection.