Earlier on when Verykool S3501 Lynx, s5511
Juno Quatro, s5510 Juno, s354, SL5000 Quantum was released we published a post
to show our readers the features, specifications and price of this most
adorable Verykool device called S3501 Lynx, s5511 Juno Quatro, s5510 Juno,
s354, SL5000 Quantum. As well as how you can perform a hard or soft reset when
your S3501 Lynx, s5511 Juno Quatro, s5510 Juno, s354, SL5000 Quantum becomes
unresponsive or should you choose to give to someone else with no data in it.

Usually, a hard or soft reset with the guide provided for Verykool S3501 Lynx, s5511 JunoQuatro, s5510 Juno, s354, SL5000 Quantum is supposed to fix any possible
software issue you might be experiencing with your Verykool S3501 Lynx, s5511
Juno Quatro, s5510 Juno, s354, SL5000 Quantum or other similar android devices
that the quick fixing guide for issues like camera, Bluetooth, SIM, Wi-Fi, YouTube or other malfunction could solve. But if
you have tried that already and it failed then, you should probably opt-in for
formatting in this case I will show you how to use Android Flash Tool to format
your S3501 Lynx, s5511 Juno Quatro, s5510 Juno, s354, SL5000 Quantum.

Steps on how to flash Verykool S3501 Lynx, s5511 Juno
Quatro, s5510 Juno, s354, SL5000 Quantum with A Flash Tool:

·        
Download
the stock ROM of Verykool S3501 Lynx, s5511 Juno Quatro, s5510 Juno, s354,
SL5000 Quantum.

·        
As usual you need to place your
phone on charge till it is charged not less than 50 percent before you process
else you phone might not wake up even after formatting.

·        
Next you will have to follow
the instruction of using a Firmware
Flashing or Upgrade Tool as explainedhere.

Stock Firmware

·        
Stock Firmware flashing can be
applied to Unbrick your Verykool S3501 Lynx, s5511 Juno Quatro, s5510 Juno,
s354, SL5000 Quantum

·        
Stock ROM flashing can be
applied to fix Bootloop issues.

·        
Stock Firmware flashing can be
applied to either upgrade or downgrade your Verykool S3501 Lynx, s5511 Juno
Quatro, s5510 Juno, s354, SL5000 Quantum

·        
It can be applied to unroot or
fix bugs on your Verykool S3501 Lynx, s5511 Juno Quatro, s5510 Juno, s354,
SL5000 Quantum.

·        
To fix stutter or lag on your Verykool
S3501 Lynx, s5511 Juno Quatro, s5510 Juno, s354, SL5000 Quantum

·        
Stock firmware flashing is
effective in solving software issues of Verykool S3501 Lynx, s5511 Juno Quatro,
s5510 Juno, s354, SL5000 Quantum.

·        
Stock firmware flashing can be
applied to revert back to the stock of your Verykool S3501 Lynx, s5511 Juno
Quatro, s5510 Juno, s354, SL5000 Quantum to gain your warranty.

Just before you follow the tips below to upgrade or
downgrade your Verykool S3501 Lynx, s5511 Juno Quatro, s5510 Juno, s354, SL5000
Quantum. Do a backup of your personal data:

·        
Setup an
auto or carry out a manual backup regularly of your Verykool S3501 Lynx, s5511
Juno Quatro, s5510 Juno, s354, SL5000 Quantum
following our guide here with
data or Wi-Fi connection.

·        
You can
also backup
your Verykool S3501 Lynx, s5511 Juno Quatro, s5510 Juno, s354, SL5000 Quantum
offline – without internet connection following the steps
provided here.

Tips to
Remember:

i.                    
This
update is meant for Verykool S3501 Lynx, s5511 Juno Quatro, s5510 Juno, s354,
SL5000 Quantum users only.

ii.                  
Be sure
to try the other method of installing stock firmware if
yours have unlocked Bootloader issue.

iii.                 
TWRP
Recovery is a good alternative on how to upgrade your device if you don’t want
to do it the normal way. Here is a post on TWRP
Recovery.

iv.                
THEUPSPOT
is in no way responsible for any damage you might have on your Verykool S3501
Lynx, s5511 Juno Quatro, s5510 Juno, s354, SL5000 Quantum while installing the
update.

v.                  
The usual upgrade steps require the use of PC or Laptop to carry out the firmware
flashing.

vi.                
Ensure
that you have an updated and working USB drivers installed.

To request for download link, simply drop your
email in the comment box below.