HELPPPPP
I need you help!!!
I was followed to root my new A40 and now it ´s rebooting randonly.
I opened the phone and disconneted the baterry but when i´m connecting again repeat this rebooting.
Please !!!!!!!!!!!!!!!!!
I hope I'm not too late but I'm sure I can help you. first, you'll loose all off your data.
1. make sure you charged your phone for a while
2. while the phone is starting, press all three buttons at the same time (power + vol up + vol down). If you see a black screen, quickly release and press only vol up + vol down.
3. your phone should start in Download Mode. If the phone wants you to confirm, press vol up
4. download the firmware for your phone. It depends on the model number you have for your a40, but you should be able to download your Samsung firmware from sammobile . com . just type in your model number and download the firmware. you need a dammobile account to do that and the download will be very slow so you have to wait.
5. If you downloaded the .zip file, extract it using 7zip or any zip extracting tool. You should now have files beginning with BL, AP, CP, CSC, HOME_CSC.
6. now open odin. if you haven't downloaded it yet, just google: odin 3
7. connect your phone to the computer. select the BL button and open the BL file. then tap AP button and select the AP file. do the same for CP and CSC (important: if you pressed the CSC button, you have to select the HOME_CSC file!)
8. if you selected all 4 files, tap start.
9. the process may take a few minutes. If odin says "PASS!", you're almost done. you should be able to boot the phone. there may be warning that the phone wasn't able to boot (that's normal!). Just select the option "wipe data/factory reset" and confirm with yes using the power button to confirm and the vol up / vol down button to select.
10. your phone should start normally and you have to start the setup process.
I hope I was able to help you. If not, contact me and we will be able to solve the problem together.