[Tutorial] Build your own CWM recovery

[rey69]

3. Go to ReadBack Tab and Add a new entry - name it as you wish but leave the ROM_0 prefix - double tap the new entry and choose the length of ROM you want to read - to create the recovery it is enough to put the number of the partition right after the recovery (you can take that number from the scatter file you created) - Keep in mind the number must be in Hex - so when you copy it from the scatter file - make sure it's with the 0x prefix - something like 0x03d80000 for example.
4. Hit the Readback and disconnect your phone from the computer, shut it down, pull out the battery for a few seconds and then put the battery back - don't turn the phone on - just connect it to the usb - it should start the readback and eventually should finish with a green circle - if everything went good

When I hit the 'Readback' button it says 'Searching' but nothing happens.
I used the partition right after recover (0x033A0000).

This is a driver issue. Unplug phone from USB and use usbdeview tool to uninstall any android or adb driver you had previously in your computer (look for HTC, Android, adb, ...), then reboot and install MTK USB Drivers again. If drivers are installed correctly, you should see a Preloader device under "ports" in device manager when you connect your swithed OFF phone to USB. Otherwise drivers are not correct.