Coolpad Catalyst 3622A was released in 2016 and it has classic design. The dimensions of this smartphone is 145 x 71.4 x 10.9 mm with volume 112.8 cm3. Its weight is 162 g and the battery is Li-Ion 2200 mAh. The built in memory of this smartphone is 8 GB and it has memory card of MicroSDHC max. 32 GB. Its RAM memory is 1 GB and the Operating System is Android 5.1 Lollipop. Its chipset is Qualcomm Snapdragon 210 MSM8909.
Talk about Coolpad 3622A, you may come to this site to know how to custom ROM Coolpad 3622A. You can download the latest Coolpad stock firmware and then custom ROM at high speed by using ROM Download Manager. Now, we are going to show you how to install Coolpad Catalyst 3622A Firmware. The first thing that you need to do is to install the Qualcomm USB driver on the same computer that you want to use for the installation of the flashing tool. Then, on your computer, download the latest Qualcomm Flash Image Loader (QFIL) file and after that extract the file by right-clicking on it and from the menu, select “Extract”.
Next, you have to download the Coolpad Catalyst 3622A stock firmware package and then extract it by right-clicking on it. Select the option to extract it. After that, open the Qualcomm Flash Image Loader (QFIL) folder and double-click on the QFIL application. Then, the flashing tool will launch. Now, you need to turn off the smartphone that you want to flash and then hold the Volume Up key. After that, connect it to the computer with the USB cable. After that, you have to click on the “Browse” button from the QFIL interface and then upload the firmware file that you’re looking to flash to this location. After you upload it, you have to give QFIL a few seconds to load the rest of the data automatically. And the last, the thing that you need to do is to hit the “Download” button, and the flashing will start.
You need to know that before you start flashing new firmware files to your Coolpad smartphone, it is better for you to always back up your data. The videos, pictures, music, documents and others of yours should be still on your device after you have updated the firmware. But, you will probably need to restore the contacts and also applications from a backup.
Several people say that it is not important to take a factory reset after updates, but at the very least you need to wipe the system cache after you install new firmware. It can help you remove any performance issues and battery draining bugs. It is also important for you to know that taking a factory reset is a good way to avoid common problems that a lot of users deal with after they apply software updates. Hopefully this explanation will be able to help you. If you want more information about Custom ROM Coolpad 3622A, you are able to ask in the forum of XDA Developers.