Earlier on when Celkon Millennia Epic Q550,
Campus whizz Q42, Millennia OCTA510, Campus buddy A404, A355, A359, A407, A518,
Q405, Q450, Q519, Q54+, A420, Q452, Q5k Power was released we published a post
to show our readers the features, specifications and price of this most
adorable Celkon device called Millennia Epic Q550, Campus whizz Q42, Millennia
OCTA510, Campus buddy A404, A355, A359, A407, A518, Q405, Q450, Q519, Q54+,
A420, Q452, Q5k Power. As well as how you can perform a hard or soft reset when
your Millennia Epic Q550, Campus whizz Q42, Millennia OCTA510, Campus buddy
A404, A355, A359, A407, A518, Q405, Q450, Q519, Q54+, A420, Q452, Q5k Power
becomes unresponsive or should you choose to give to someone else with no data
in it.

Usually, a hardor soft reset with the guide provided for Celkon Millennia Epic Q550, Campuswhizz Q42, Millennia OCTA510, Campus buddy A404, A355, A359, A407, A518, Q405,Q450, Q519, Q54+, A420, Q452, Q5k Power is supposed to fix any possible
software issue you might be experiencing with your Celkon Millennia Epic Q550,
Campus whizz Q42, Millennia OCTA510, Campus buddy A404, A355, A359, A407, A518,
Q405, Q450, Q519, Q54+, A420, Q452, Q5k Power 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 Millennia Epic Q550, Campus whizz Q42, Millennia OCTA510, Campus buddy
A404, A355, A359, A407, A518, Q405, Q450, Q519, Q54+, A420, Q452, Q5k Power.

Steps on how to flash Celkon Millennia Epic Q550, Campus
whizz Q42, Millennia OCTA510, Campus buddy A404, A355, A359, A407, A518, Q405,
Q450, Q519, Q54+, A420, Q452, Q5k Power with A Flash Tool:

·        
Download
the stock ROM of Celkon Millennia Epic Q550, Campus whizz Q42, Millennia
OCTA510, Campus buddy A404, A355, A359, A407, A518, Q405, Q450, Q519, Q54+,
A420, Q452, Q5k Power.

·        
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 Celkon Millennia Epic Q550, Campus whizz Q42, Millennia
OCTA510, Campus buddy A404, A355, A359, A407, A518, Q405, Q450, Q519, Q54+,
A420, Q452, Q5k Power

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

·        
Stock Firmware flashing can be
applied to either upgrade or downgrade your Celkon Millennia Epic Q550, Campus
whizz Q42, Millennia OCTA510, Campus buddy A404, A355, A359, A407, A518, Q405,
Q450, Q519, Q54+, A420, Q452, Q5k Power

·        
It can be applied to unroot or
fix bugs on your Celkon Millennia Epic Q550, Campus whizz Q42, Millennia
OCTA510, Campus buddy A404, A355, A359, A407, A518, Q405, Q450, Q519, Q54+,
A420, Q452, Q5k Power.

·        
To fix stutter or lag on your Celkon
Millennia Epic Q550, Campus whizz Q42, Millennia OCTA510, Campus buddy A404,
A355, A359, A407, A518, Q405, Q450, Q519, Q54+, A420, Q452, Q5k Power

·        
Stock firmware flashing is
effective in solving software issues of Celkon Millennia Epic Q550, Campus
whizz Q42, Millennia OCTA510, Campus buddy A404, A355, A359, A407, A518, Q405,
Q450, Q519, Q54+, A420, Q452, Q5k Power.

·        
Stock firmware flashing can be
applied to revert back to the stock of your Celkon Millennia Epic Q550, Campus
whizz Q42, Millennia OCTA510, Campus buddy A404, A355, A359, A407, A518, Q405,
Q450, Q519, Q54+, A420, Q452, Q5k Power to gain your warranty.

Just before you follow the tips below to upgrade or
downgrade your Celkon Millennia Epic Q550, Campus whizz Q42, Millennia OCTA510,
Campus buddy A404, A355, A359, A407, A518, Q405, Q450, Q519, Q54+, A420, Q452,
Q5k Power. Do a backup of your personal data:

·        
Setup an
auto or carry out a manual backup regularly of your Celkon Millennia Epic Q550,
Campus whizz Q42, Millennia OCTA510, Campus buddy A404, A355, A359, A407, A518,
Q405, Q450, Q519, Q54+, A420, Q452, Q5k Power
following our guide here with
data or Wi-Fi connection.

·        
You can
also backup
your Celkon Millennia Epic Q550, Campus whizz Q42, Millennia OCTA510, Campus
buddy A404, A355, A359, A407, A518, Q405, Q450, Q519, Q54+, A420, Q452, Q5k
Power offline – without internet connection following the steps
provided here.

Tips to
Remember:

i.                    
This
update is meant for Celkon Millennia Epic Q550, Campus whizz Q42, Millennia
OCTA510, Campus buddy A404, A355, A359, A407, A518, Q405, Q450, Q519, Q54+,
A420, Q452, Q5k Power 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 Celkon Millennia
Epic Q550, Campus whizz Q42, Millennia OCTA510, Campus buddy A404, A355, A359,
A407, A518, Q405, Q450, Q519, Q54+, A420, Q452, Q5k Power 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.