Redmi K20 Pro Teardown – Value Champion is Clear!?

Redmi K20 Pro Teardown – Value Champion is Clear!?


Today we’re going to take apart the devilishly
good-looking Redmi K20 Pro. This could very
well be the most bang-for-your-buck budget
cellphone released so far in 2019. And today
we’re going to see it all from the inside
and maybe see if a clear version is possible
since we haven’t made one of those in a while.
Let’s get started.
[Intro]
The back panel of this Redmi K20 Pro is made
from glass, and it’s the typical glued shut
glass sandwich design we’ve been seeing in
smartphones for years. With a bit of heat
and a sharp pry tool to slice the adhesive
between the glass panel and metal frame, it
should come off easy enough. We’ll be digging
around inside of the phone to check out the
water resistance as we take it apart.
Once all the adhesive is cut, I can twist
the panels off of each other revealing the
internals of the phone. The mechanical pop-up
camera is still hidden underneath the top
plastics which we can get to in a second.
Interestingly enough though, there are red
rubber fillers inside each of the button cavities.
This might be the first sign of water resistance.
These red rubber strips tucked inside each
of the button holes aren’t used to push the
button back out like we’ve seen in some of
the old Nintendo controllers. The rubber’s
just there to take up space. And the more
the holes are plugged up, the harder it is
for water to get inside. So far so good.
Getting deeper into the K20 Pro we find 20
screws which are surprisingly green. Maybe
the strange playful screw coloring is to help
offset the evil vibe of the back panel. In
some electrical applications a green screw
means a grounding screw, which might be the
case here….but could also just be the favorite
color of the guy who designed it.
Once the screws are out I can lift off the
top black plastic panel. The K20 Pro has a
square NFC pad on the back. It’s a smaller
signal coil and not the larger power sharing
wireless charging coil. But the technologies
are still pretty similar.
The bottom plastics can come loose. These
include the loudspeaker and check this out…the
speaker has the same water resistant mesh
we’ve seen on ingress protected phones. I’m
beginning to think that Redmi added the water
protection but didn’t pay for the certification.
Kind of like OnePlus did a while back.
I’ll mosey my way up to the top of the phone.
Here we can see the internal stepper motor
system that raises and lowers the front camera.
Redmi said this thing is good for 300,000
motions, just like the OnePlus and Vivo phones.
It’s still fascinating to see them in motion
though. The internal motor spins that threaded
shaft, and as the threaded shaft spins, the
camera motors on up out of the phone. And
then motors back down into the phone when
the threads rotate the opposite direction.
The motor can overheat with too much use though.
Hence this warning about using the camera
too frequently.
Where was I? Oh yeah. The difference between
this pop up camera and other pop-up cameras
though is the LED sidebars that light up as
the camera protrudes and again as it retracts.
These kinds of flashy LED RGB’s are things
we normally only see inside of gaming phones
or PC’s.
We’re going to for sure find out what these
LED’s look like. But first let’s see what
the phone would look like clear. I’m a huge
fan of psychedelic phones so honestly I would
probably just leave this one’s coating intact,
but it’s still cool to see how the layer of
color works. It’s kind of like a giant sticker
that’s just applied permanently to the bottom
side of the glass. Personally I think they
should be sticking holographic designs under
here like the Pokemon cards used to have.
The K20 Pro sticker peels off cleanly from
the underside of the glass leaving no residue
behind. I’m being very careful not to flex
the glass as I peel it off though, because
glass is glass and glass can break. Some of
the internal black plastics are important.
You can see the silver metallic antenna lines
so I’ll keep those and the connectors for
the NFC pad. And I’ll also keep the lower
loud speaker with it’s contact pads. Once
those are cut, the clear glass can be stuck
back into place, and I think it looks pretty
cool half and half like this, showing the
different layers inside of the K20 Pro. The
pop up motor is visible which is the most
important part. And you know, obviously, the
warranty and water resistance is now gone,
so I wouldn’t recommend attempting this unless
you have nothing to lose.
If you’re looking for a non-permanent phone
modification, it’s probably safer to stick
with something like dbrand. You can get something
a bit more angelic and classy like the marble
or white carbon. Or my personal favorite – the
stealthy swarm or black camo. And if you know
you like playing with wood, you can always
get real crazy with bamboo or something. And
since the skins are protective, yet non-permanent,
they don’t void any warranty. I’ll put a link
down in the description for you. And thanks
to dbrand for sponsoring this video. Let’s
go deeper.
I’ll unplug the battery connector like a little
Lego, and then I can unplug each end of this
long extension ribbon and then we can remove
the battery. This is one of my favorite styles
of battery adhesive: the strong tangible pull
tabs. The adhesive is thinner than the magical
pull tabs we see inside iPhones or even the
permanent adhesive we see inside the Samsung
phone. And look how strong it is. Before I
release tabs one and two, the battery was
attached to the phone stronger than I can
physically remove. But once tabs one and two
are released, the whole battery comes out
easily and cleanly with no bending or dangerous
prying. Plus no broken pull tabs. Huge thumbs
up for that. The battery is a 4,000 milliamp
hour capacity.
I can unplug the bottom motherboard ribbon
and the lowest camera, the 13 megapixel wide-angle.
Pulling this guy out to get a closer look
reveals that there is no optical image stabilization.
We can pop out the other two rear facing cameras
out of the housing to get a closer look at
them. The top 8 megapixel telephoto camera
and the middle normal perspective 48 megapixel
Sony sensor, neither of which have the physical
image stabilizing that we’ve come to expect
on high-end phones. But this budget phone
is extremely feature rich at like $350, so
we can’t complain too much.
I’ll remove the one massive stand off screw
holding down the motherboard and motor. Then
I can unclip the super long front facing camera
extension ribbon with my plastic pry tool.
And that releases the motherboard. The motherboard
has a built-in headphone jack and a pretty
solid glob of thermal paste on the back for
the thermal cooling. The motherboard sits
on top of this copper foil. It’s not pure
copper like we’ve seen in some of the major
flagships, but still enough that it’s sufficient.
It kind of has a rubberish feel and look when
I pulled it out, so I grab my lighter and
since rubber will start to burn and melt before
copper will, I started it on fire. The copper
foil did not melt, but very efficiently transferred
the heat from my flame right into my fingers
holding the other side of the foil. So we
definitely know it works.
Let’s take a closer look at the light up pop
up camera and see where that red frontal glow
comes from. Surprisingly there is only one
more screw left holding it in place – another
green little guy. I’ll remove that and then
lift off the motor power ribbon and pull the
stepper motor out. Then I can slide the pop
up camera up and out of the phone.
Since there are no LEDs shining up into the
lower portion of the housing, it means everything
must be self-contained inside the boxy camera.
So in order to find it, we have to remove
the camera covering – the red plastic with
the translucent bars along the side. My razor
blade can slice through the housing and leverage
off the top revealing some pretty cool internals.
The LEDs are actually located around the base
of the camera and they shine up into the cloudy
clear plastic rainbow. The light rays reflect
off of the intentional cloudiness of that
plastic allowing the entire sides and top
to glow. We’ve seen the same effect achieved
in the ROG gaming phone. And, you know, not
to toot my own horn, but I also included this
in the LED wall mounted PC that I built 5
years ago. I’ll put a link for that incredibly
old video in the description.
Fun side note: this pop up camera has the
same rubber ring around the base to help keep
water and dust out that we saw inside the
OnePlus phone. Just another indicator that
Redmi has put effort into water resistance.
I’ll get the motor situated back into it’s
grooves in the metal frame. Then let’s see
what the K20 Pro has down here at the bottom.
Right off the bat we see the old school rotating
mass vibrator motor. I can unclip all the
attached ribbon cables and there are no screws
holding the bottom board in place. But for
some reason it’s still won’t come out of the
phone.
On a completely unrelated note, the dual SIM
card tray is down here. It also has a very
thin rubber ring around the base to keep water
and dust out. And now magically the charging
port board is ready to come loose, showing
us it’s 27 watt quick charge capable USB-C
port with a white hexagon shaped water damage
indicator. There is rubber around the tip
of the port. And if we look closely we can
see another tiny water resistant screen inside
the phone over the microphone hole. It’s hard
to call this phone totally water resistant
since it has so many large openings. But it
does have a lot of protections against water
and that’s always a good thing.
The under display fingerprint scanner is right
here under the display. Redmi’s calling this
a 7th generation optical scanner and I don’t
have any complaints with it. Personally, I
think underscreen fingerprint scanners are
pretty cool. Overall I’m pretty excited about
the K20 Pro. It just proves that a lot of
the latest and greatest flagship features
are now popping up on budget devices. Cheap
phones are catching up and catching up quick.
There’s really no reason to spend $1000 on
a smartphone…unless of course you use it
for business and the phone is paying for itself.
With all the cameras clipped back into place
and the ribbon cables connected, I’m ready
to add the battery and the long extension
ribbon with it’s upward facing arrow. Then
I can get the back plastics screwed in with
all my green screws. This phone is all kinds
of fun.
I’ll put the clear glass into place on top
of the phone, and lucky for us the whole thing
still turns on. The power button has a very
interesting connection with the gold contact
pads resting up against the bottom side of
the motherboard so if the motherboard’s not
screwed down, it doesn’t start. If your phone
ever does get wet and stops working, cleaning
off those contact pads would be a good place
to start. It’s a weird connector.
And there you have it, a fully functional
Redmi K20 Pro with a light up mechanical camera,
all reviewed from the inside. Let me know
your favorite part of this phone down in the
comments and if you enjoy seeing technology
reviewed like this…from the inside. Hit
that subscribe button, we’ve got some fun
videos on the way.
Don’t forget to see what your phone looks
like with a skin on it using the dbrand link
in the description. And come hang out with
me on Instagram and Twitter. Thanks a ton
for watching. I’ll see you around.

93 Replies to “Redmi K20 Pro Teardown – Value Champion is Clear!?”

  1. Hey Jerry I'm probably asking to much but can you do a review on the HUAWEI P smart Z just saying but anyway love your content and congrats my man

  2. These companies are getting smarter with the economical phones. They sell better when the newer tech is applied. Exactly, I'd never spent 1000 bucks on a phone. My 200 dollar phone does everything I need it for and it does it well.

  3. One man's trash is another man's treasure. It's very heartbreaking πŸ’” to watch teardown of the phone that I wanted so badly. Some people earn by destroying and some dream of it lol

  4. Not really! "Best value" depends on each Person view! Someone who have highly security informations, like a Manager, better stick to the Blackberry Key 2! It depends on the needs for the of the content! But yes, the average person should not have so much quality data on there phone!

  5. PLEASE DO BEND TEST AFTER THE TEARDOWN .. WE WONDER HOW MUCH DURABLE JUST ALUMINUM OR PLASTIC.
    OR SHOW ABOUT METAL DURABILITY TEST THANK YOU

  6. i was waiting for this video… i am having this mobile phone for 1 months…. unfortunately i dropped it on the steps and the display was broken….replacement of this display is very high… i didnt even pay the first EMi of this phone…. very sad…i am waiting to its price reduce

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