Hello,
The only issue when unlocking via Brute-force is that you have to have that timer stable. Otherwise it will be not practical, as the unlocking time will be longer and longer.
For example on a 4 digit standard android the math is simple:
- 4 digit pin will have 10.000 max possible codes,
- entering code takes about in 0.5seconds, testing 1 second, and having 30 seconds delay between each 5 codes batch :
1s + ( 0.5s + 1s ) x 5 + 30 s = 38.5seconds for 5 codes = about 7.7sec/code, - 10.000 * 7.7 = 77.000 Seconds = 1296minutes = About 22 hours
So this is why we said to test all 4 digit codes will take about 1 day, but if instead you got 2 minutes between codes the estimated max time will be (0.5s + 120s) * 10.000 = 1.205.000 seconds = about 14 days.
p.s. Usually for pattern locks, after around 10 or 20 wrong patterns they phone will display an option to use the backup pin to unlock it ( "Forgot Pattern?" or "Backup Pin" labels are used most common and are displayed next to the emergency button). And with Android Brands and models, depends on model/brand/ android version if that backup got no delay between codes, this is why our setup process for Android phones is having more steps than Iphone or EFI setup process.
Best regards,
HDBOX Support team.