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S21, S21+, S21 Ultra, and S21 FE — screens, batteries, charging ports, and more, usually the same day.
A Galaxy S21 that's four years into daily life usually comes in for the same handful of things — a battery that's lost its stamina, a charging port that's gotten unreliable, or a screen you've been putting off fixing. We handle all of it at Cell N Comp Repairs, across the whole series: the S21, S21+, S21 Ultra, and S21 FE, including screens, batteries, charging ports, cameras, and back glass. We fit OEM or quality aftermarket parts where offered, finish most repairs the same day, and back every one with our 30-day parts-and-labor warranty. On a phone this age, if it isn't holding a charge, a battery replacement is usually all it takes to get another year or two out of it. Stop into any of our three shops in West Ridge, Logan Square, or Skokie, or book online to skip the wait.
| Repairs | Price |
|---|---|
| Screen Repair & Replacement | $189 (OEM) |
| Battery Replacement | $59 |
| Charging Port Replacement | $69 |
| Back Glass Replacement | $89 |
| Repairs | Price |
|---|---|
| Screen Repair & Replacement | $159 (After Market) - $199 (OEM) |
| Battery Replacement | $59 |
| Charging Port Replacement | $69 |
| Back Glass Replacement | Call Us |
| Repairs | Price |
|---|---|
| Screen Repair & Replacement | $159 (After Market) - $199 (OEM) |
| Battery Replacement | $59 |
| Charging Port Replacement | $69 |
| Back Glass Replacement | Call Us |
| Repairs | Price |
|---|---|
| Screen Repair & Replacement | $169 (After Market) - $269 (OEM) |
| Battery Replacement | $69 |
| Charging Port Replacement | $89 |
| Back Glass Replacement | Call Us |
The flat panels on the S21 and S21+ come off cleanly, with a choice of OEM or a quality aftermarket OLED on both; the S21 FE is fitted with OEM. On a four-year-old phone, a display replacement is far cheaper than upgrading, and most are done the same day with our 30-day warranty.
The S21 Ultra's larger, higher-resolution panel is the priciest of the group, and you have the same OEM-or-aftermarket choice here too. Despite the size, it's a routine job for us — most Ultra screens are same-day, backed by our 30-day warranty.
By this point in the S21's life, a worn battery is the number-one reason people bring one in. If yours barely reaches the afternoon, shuts off with charge still showing, or has begun to swell, a new cell restores it completely. Our battery replacement covers the S21, S21+, S21 Ultra, and S21 FE, using careful adhesive removal to protect surrounding components — a same-day fix in most cases, with a 30-day warranty.
After four years of plugging in every night, the USB-C port is one of the first things to go — so if your S21 won't charge, only charges at an angle, or needs the cable held just right, it's usually lint packed into the port or a worn connector. We run a free diagnostic first, because plenty of "dead" ports on older S21s just need a thorough cleaning. If the port has actually failed, our charging port repair replaces it — tighter inside the S21 Ultra than the roomier S21 and S21+. Most are same-day and warrantied for 30 days.
Blurry photos, a cracked lens cover, or a camera that won't focus usually point to scratched lens glass or a failed module. We repair front and rear cameras across the S21 lineup. The S21 Ultra's 108MP main sensor and dual telephoto lenses are the most specialized in terms of source and fit, while the S21, S21+, and S21 FE are more straightforward. Most camera fixes are same-day and covered by the 30-day warranty.
The rear glass on the S21 cracks easily in a drop, and because it's bonded to the frame, replacing it takes controlled heat to lift the old panel without disturbing the cameras or wireless charging coil underneath. We handle back glass on every model, from the standard S21 to the S21 Ultra with its distinctive contour camera housing. You'll leave with a back that looks factory-fresh, same day in most cases, warrantied for 30 days.
Our West Ridge shop on Western Ave takes most of our same-day S21 work, and on a phone this age it's mostly batteries and charging ports. Walk in and a battery or screen swap is often finished before you've run your errands, usually under an hour on the bench. There's easy parking along Western, so getting in and out is quick.
Wondering if a four-year-old S21 is worth the money? Our Logan Square store on Diversey will tell you honestly — what's failing, what it costs, and whether fixing it beats replacing it, which for a solid S21 it usually still does. OEM or aftermarket, with the option, no upsells, and you talk directly to the tech handling it. Easy to reach off the Blue Line.
For the north suburbs, our Skokie location in Eastgate Plaza on Dempster is the convenient choice — parking right out front, and we cover the S21, S21+, S21 Ultra, and S21 FE. Many of our Skokie, Evanston, and Lincolnwood customers would rather bring an older S21 here for a battery or screen repair than drive downtown. Same parts, same 30-day warranty, same-day turnaround, closer to home.
From the S21 to the S21 FE, we offer professional repair services to get your Samsung phone back in perfect shape. Tap the links above to learn more about individual repairs, or contact us today to schedule a service.
For many people, yes. The S21 still runs everyday apps smoothly, and a battery or screen replacement costs a fraction of a new phone. We'll tell you honestly at the counter if a repair isn't the smart move.
Most of the time, yes. Screen and battery replacements for the S21, S21+, S21 Ultra, and S21 FE are usually done the same day at all three stores, often within the hour at West Ridge if you come in early.
Almost certainly. On a phone this age a worn battery is the most common issue we see, and a replacement brings it back to a full day's use, usually same day.
On the S21, S21+, and S21 Ultra, yes — aftermarket to save or OEM for an exact match. The S21 FE is fitted with an OEM screen. We'll walk you through the options at the counter.
We do. Our Skokie store in Eastgate Plaza is a short drive from Evanston, Lincolnwood, and the nearby north suburbs, with easy parking.
Every S21 repair comes with a 30-day parts-and-labor warranty across all three stores. If anything's off with the part we installed, bring it back and we'll make it right.
