T‑Mobile rolls out heavy trade‑in credits and promo codes to slow churn after Galaxy S26 launch

T‑Mobile has rolled out a broad set of trade‑in and switching promotions aimed at reducing churn and driving new activations days after Samsung’s Galaxy S26 launch, industry trackers reported. The push, disclosed in coverage spanning late October and November 2025, includes monthly bill‑credit packages tied to promo codes, an $830 loyalty offer, and a series of switch incentives that could cost the carrier several hundred dollars per device in upfront credits.

GizmoGrind cataloged the most granular elements of the campaign as November 2025 promotions, noting specific promo codes and credit schedules. Promo R073 delivers up to $25.00 in monthly credits for 24 months with a new line activation, equal to as much as $600 in total credits. Promo R204 offers up to $33.34 per month for 24 months on qualifying plans, totaling about $800.16. GizmoGrind also listed R210 at $12.50 in monthly credits and R199 at $7.00 per month for mobile internet line additions. The site called the timing “one of the best times all year to upgrade or switch” and urged consumers to “prepare, document, and time your trade‑in for maximum value.”

Both GizmoGrind and The Sun flagged a large $830 program. GizmoGrind described it as an “extraordinary $830 loyalty trade‑in promotion—one of the year’s most generous offers,” tied to existing customers with a clean payment history. The Sun framed the same dollar value differently, saying customers could “receive up to $830 back through 24 monthly bill credits when they trade in an eligible device and add a line on a qualifying plan.” Dividing $830 over 24 payments implies roughly $34.58 per month in credits.

The Sun, in an Oct. 24, 2025 article, said T‑Mobile was “hosting 11 promotions” and in places called it “nearly a dozen,” and warned users they “may incur a $35 fee,” though the outlet did not specify what the fee covers. The Sun added examples including a $630 credit for customers switching from Metro to T‑Mobile and up to $300 off a new iPhone with a trade‑in and qualifying plan. The Sun also asserted the carrier was “at risk of losing 75.9 million customers,” a dramatic figure not corroborated in other reporting and presented here as the outlet’s claim.

Operational details compiled by GizmoGrind indicate trade‑ins can be completed both in store and online and that traded devices “will either be refurbished or responsibly recycled,” tying the promotions to device‑recovery logistics and sustainability messaging. GizmoGrind also emphasized that “as offers frequently change, check T‑Mobile’s official promos often and always review the fine print before making your final decision.”

For carriers, large, time‑staggered credit packages are a familiar retention lever: offering $600–$800 in device credits reduces immediate churn risk and can drive net additions, but it also compresses near‑term margins and shifts revenue recognition into extended credit streams that affect ARPU and cash flow. With Verizon and AT&T intensifying device offers, the cost of preserving subscribers through generous trade‑in credits has become a central competitive battleground.

Readers considering upgrades should verify eligibility and terms directly with T‑Mobile; GizmoGrind advised visiting “T‑Mobile’s promotional offers page or stop into your local store” for up‑to‑date details. Journalists and analysts seeking confirmation of start dates, precise eligibility for the $830 offer, and the nature of the $35 fee should request full promotional terms from T‑Mobile.