Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to flash a phone [title] Make sure you are trying to flash a cdma phone. [step] Cdma stands for code division multiple access. If you are uncertain whether your phone is cdma or not, remove the battery and look for a removable subscriber identity module (sim) card under the battery.

Ending1: A pdma is usually easy to find-and while you can search for a pdma folder in the same list of case data, there may be cases where your phone has already been scanned. [title] Locate the phone's unique keychain slot. Ending2: A non-russian calling card should work either for phones with 60 gb of battery capacity or for phones with every 3 gb of battery. Certain radio's have built-in apps that make it possible to flash phones. Ending3: [substeps] In many countries, new users simply have to flash the card in order to make it off. You can find it in the glove compartment of many vehicles or items (like smartphones, laptops, etc. Ending4: If there isn't a sim card, you indeed have a cdma phone that can be flashed. [substeps] Gsm (global system for mobile communications) phones can't be flashed (like at&t and t-mobile).

Answer format: ending1/ending2/ending3/ending4