Hyehwa self-serve phone case shop: swapping yellowed cases at Casedby

In short

Casedby Hyehwa (케이스드바이 혜화) is an unmanned, self-serve phone case shop on Daemyeong-gil in Jongno, Seoul, in the Hyehwa and Daehak-ro area. After seeing a play, a married couple stopped by to replace their yellowed phone cases and made a Galaxy case and an iPhone 13 case with artist-collab designs, each finished in about 2 minutes. With clear instructions and sturdy cases, Casedby Hyehwa made a satisfying date activity in Daehak-ro.

Finished Casedby artist-collab MagSafe phone case

Good to know

Getting there
Hyehwa Station Exit 4 · 3-min walk (store listing, Oct 24, 2026)
Location
37 Daemyeong-gil, Jongno-gu, Seoul (Hyehwa / Daehak-ro)
How it runs
Unmanned, self-serve shop
Supported phones
All Galaxy and iPhone models (an iPhone 13 case was made)
Case types
MagSafe case / clear case
Designs
Upload your own photo or pick an artist-collab design from the gallery
Making time
About 2 minutes

as written by the visitor on Apr 20, 2026 · not checked with the business

Casedby Hyehwa, an unmanned phone case shop in Hyehwa

What is Casedby Hyehwa?

Casedby Hyehwa (케이스드바이 혜화) is an unmanned, self-serve phone case shop in Hyehwa, near Daehak-ro. After watching a play, we were looking for something to do on a Hyehwa date for the first time in a while, and we found a place that was totally fascinating and exactly my taste. My husband's case and mine had both turned yellow, so we decided to replace them this time, and we were really happy with this place.

Please note that Casedby in Daehak-ro is unmanned! Inside, Casedby Hyehwa was super clean, which made me realize how many people must come through here.

Is Casedby Hyehwa hard to use?

Using Casedby Hyehwa is really simple. Instructions on how to make a case are posted all around the shop, so you just follow them. We came to get new phone cases, so my husband and I each made one!

Inside Casedby Hyehwa with usage instructions
Phone case making instructions posted inside Casedby Hyehwa
Interior of the unmanned Casedby Hyehwa shop
Self-serve making guide at Casedby Hyehwa

What designs can you choose at Casedby Hyehwa?

At Casedby Hyehwa you can make your own case with a photo you prepared, or print an artist-collab design as it is. You can bring a photo in advance, and if you're the "I'm no good at that stuff!" type, you can simply make one of the artist-collab designs.

The designs are varied, and there were so many pictures that hit my taste that I agonized for ages over which to pick.

Artist-collab phone case designs at Casedby Hyehwa
Various phone case designs on display at Casedby Hyehwa
Sample phone cases with artist illustrations at Casedby Hyehwa
Phone case designs on display at Casedby Hyehwa

You can make phone cases at Casedby Hyehwa, but there were also lots of items for decorating your phone ("phone-kku" in Korean)!

Phone decorating accessories on display at Casedby Hyehwa

Cases for every Galaxy and iPhone model can be made. I had searched ahead and found an artist's drawing I loved, so I chose an artist-collab case!

Choosing an artist-collab case at Casedby Hyehwa
Galaxy phone case making screen at Casedby Hyehwa
Husband making his Galaxy phone case
Self-serve case making machine at Casedby Hyehwa

How long does it take to make a Casedby phone case?

Making one phone case at Casedby Hyehwa took about 2 minutes. My husband, who uses a Galaxy, went first (I'll show the detailed steps below with my iPhone!), and even he, who's not great at this kind of thing, looked at the guide and fumbled his way through it.

Phone case being made in real time at Casedby Hyehwa
Casedby phone case finished in 2 minutes

You can see in real time how far along it is. Before we came, my husband asked, "Doesn't it take a long time to make a case?", and that turned out to be wrong: after about 2 minutes, the case was finished right before our eyes.

When it's done, the light turns on where the product comes out, and boom...! it drops down, hahaha.

Steps for making your own phone case at Casedby

At Casedby Hyehwa, you scan the QR code on the screen, choose your phone model, case type and design, and pay, and then the making starts. Here are the steps I followed to make my iPhone case at Casedby in Daehak-ro!

  • Scan the QR code on the screen with your phone's regular camera.
  • Choose Korean in the language settings.
  • Tap your phone model. I use an iPhone 13, and I was so happy that this model works too!
  • Choose by taste whether to make a MagSafe case or a clean clear case.
  • Time to decorate the screen! If you have a photo you made, tap 'Upload'; if you want an artist-collab product, tap 'Gallery'.
  • When the design is done, tap pay and wait, and the making begins.
Screen for choosing an artist design in the Casedby gallery

This cat drawing was so cute that I chose Gallery and picked it. There are plenty of other artists besides this one, so choose whatever suits your taste!

Selecting the angry cat artist-collab design

Ta-da! The extremely angry cat I picked, haha. Personally I love yellow and I love animals, so this case was totally my taste.

Once the design is done, tap pay, and all you have to do is wait while your own phone case starts being made.

Case making progress screen shown as a percentage

You can watch the case being made in real time like this, and it was fun to see it come together bit by bit as a percentage.

Likewise, when the light turns on where the product comes out, your Casedby phone case is done. Choosing the cute design took longer than the making itself, because the making took such a short time.

The couple's finished phone cases from Casedby Hyehwa
Two phone cases made by husband and wife

How was the quality of the finished Casedby phone case?

The cases made at Casedby Hyehwa had vivid colors and clean printing. The left one is the case my husband made and the right one is mine, and they came out exactly like the samples hanging in the shop!

Finished Casedby artist-collab MagSafe phone case

The colors were vivid and the printing was really clean. It was my first MagSafe phone case, and it was lighter and sturdier than I expected.

Casedby phone case in the design the husband chose

This is the Casedby case my husband fell for the moment he saw the design. Along with the phone case, there was also a case that protects the camera, so we attached it, and it looked clean and so pretty.

Casedby phone case with a camera protection case attached

Do we recommend Casedby Hyehwa as a Hyehwa date activity?

Casedby Hyehwa is unmanned, but the instructions are very clear, and above all the cases are sturdy and the designs varied, so it was a Hyehwa date activity we were very happy with. It's at 37 Daemyeong-gil, Jongno-gu, Seoul, so keep that in mind :)

Where it is

Casedby Hyehwa케이스드바이 혜화

37 Daemyeong-gil, Jongno-gu, Seoul, South Korea서울특별시 종로구 대명길 37

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