Hilyana,
Did you download the 1.2.3.0 client from Google Play or get it from the download directory?
Can you tell us more about your device?
* What make and model is it?
* What OS version is it running
* How much free space is available on it?
* Do you have an installed memory card expanding your memory?
The game needs to write a cache to your device to store the patches. If you have something that blocks an app from writing to your device, that could be the culprit.
Thank you very much.
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