Yeah, if it shows reactivation lock on in the download mode menu then you will need to factory reset the phone via recovery as you can't flash custom files with reactivation lock on which would allow you to remove the password via custom recovery.
You can check this by turning off the phone then holding power + volume down + home until you see the download mode prompt screen, then use volume buttons to enter download mode.
Look at text at top right for reactivation lock info. To get out of download mode hold the same keys again for 10-15 seconds.
The process of bypassing the screen lock involves flashing a custom recovery, typically TWRP then booting into the recovery, mounting the system partition, and using the built in file manager to delete the following files
- password.key
- pattern.key
- locksettings.db
- locksettings.db-shm
- locksettings.db-wal
More info here:
https://forum.xda-developers.com/android...
Download mode is used to flash files with the program called ODIN, more info here:
https://updato.com/firmware-archive-sele...
crwdns2934105:0crwdne2934105:0
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1
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This is my last chance to get the correct password or my mobile is locked for good
crwdns2934271:0crwdnd2934271:0 mike.penman crwdne2934271:0
Forget email id forget password forget phone screen lock pin
=== Update (08/29/2018) ===
Please tell me how to unlock my phone
crwdns2934271:0crwdnd2934271:0 karthi keyan crwdne2934271:0
Unlock my A5 2016 Samsung
crwdns2934271:0crwdnd2934271:0 Anil Selvaraja crwdne2934271:0