how to open atm piggy bank

Most ATM-style piggy banks require you to enter a personal four-digit PIN or code on the keypad, similar to a real ATM. If you have forgotten the PIN, the method for opening the bank depends on the specific toy model. Some have a small reset hole—often hidden—that you can press with a pin or paperclip to restore the device to a factory default PIN, such as '0000'. Alternatively, some models may reset the code when you remove and re-insert the batteries. Always check the original instruction manual for the precise opening or reset procedure for your specific ATM piggy bank.