iPhone 6s not detecting the cable or saying the accessory isn't supported? We replace the U2 power controller in 1–3 days, no extra charges after approval.
A charging controller gives itself away when nothing charges, an accessory warning appears, current arrives in bursts and a computer cannot see the phone.
The cable is plugged in but no lightning bolt appears, even though the port is clean and the adapter and cable are fine.
The iPhone complains about a healthy original cable, or starts charging and cuts it off right away.
The indicator comes and goes, and the percentage rises only when the plug sits at one particular angle.
The phone is not detected over the cable and iTunes or Finder stay silent, while the computer port works.
We name the final amount after testing the board and defining the soldering scope — call or message us on WhatsApp.
| Service | Original | Aftermarket |
|---|---|---|
| Battery replacement | 23 900 ₸ | 13 900 ₸ |
| Charging port replacement | 14 900 ₸ | 8 900 ₸ |
| Display replacement | 28 900 ₸ | 27 900 ₸ |
| Display glass replacement | 28 900 ₸ | 15 900 ₸ |
| Housing replacement | 58 900 ₸ | 32 900 ₸ |
| Camera glass replacement | 17 900 ₸ | 9 900 ₸ |
| Main camera replacement | 33 900 ₸ | 18 900 ₸ |
| Front camera replacement | 24 900 ₸ | 13 900 ₸ |
| Home button replacement | 26 900 ₸ | 15 900 ₸ |
| Earpiece speaker replacement | 22 900 ₸ | 13 900 ₸ |
| Speaker replacement | 19 900 ₸ | 11 900 ₸ |
| Microphone replacement | 19 900 ₸ | 11 900 ₸ |
| Button replacement | 22 900 ₸ | 13 900 ₸ |
| Vibration motor replacement | 19 900 ₸ | 11 900 ₸ |
| Proximity sensor replacement | 29 900 ₸ | 17 900 ₸ |
| Other repairs | Price | |
| Power controller replacementboard-level chip · microsoldering | 24 900 ₸with parts | |
| Logic board repairmicrosoldering · 1–3 days | 135 900 ₸per job | |
| Water damage cleaningcorrosion cleaning · diagnostics up to 2 days | 8 900 ₸per job | |
| Wi-Fi module repairwireless module · board-level repair | 10 900 ₸with parts | |
| Storage replacement and upgradememory chip installation | 30 900 ₸with parts | |
| Firmware flashingsoftware restore, no parts replaced | 6 990 ₸per job | |
| Modem repairboard-level chip · microsoldering | 19 900 ₸with parts | |
The amount may change if traces must be restored or the port replaced together with the chip.
We rule out the cable and port first, then test the current, replace the chip and review the neighbouring circuits and charging itself.
We rule out the simple causes first: a dirty port, a faulty cable, the adapter and the bottom flex.
We watch how the phone behaves on a bench supply and how much current it draws once connected.
The phone is opened, the battery disconnected and the metal shield over the right chip is lifted off.
The faulty U2 is desoldered, the pads are cleaned and a new chip is placed on them.
We inspect neighbouring parts and traces so the new chip does not fail again right away.
We plug in the cable and check charging, the link to a computer and the buttons one by one.
Your phone accepts charge again, and the work is under warranty.
Price for my modelSometimes replacing U2 alone is enough, and sometimes neighbouring parts need work too, which is decided at the check.
A power chip should only be replaced once the cause is confirmed, which is why we state the scope of work in advance.
The chip swap carries a warranty up to 1 year: if charging fails again because of our part of the job, we return to it.
The service has worked for 11 years and knows the typical charging ailments of older iPhones like the sixth generation.
Micro-soldering is done by experienced technicians, because a tiny chip leaves no room for a casual mistake.
Cable, port and battery are excluded first, and only then do we pick up the hot-air station and open the board.
We explain beforehand whether only U2 needs replacing or the surrounding circuits must be restored too.
Bring the phone on a weekday or at the weekend; the schedule is on the contacts page.
A customer brought in an iPhone 6s that stopped turning on after using a non-original charger. We replaced the power controller on the board, checked the current and charging — the phone came back to life, and the customer immediately saw the wallpaper with his grandson.
The whole journey — from a message to a finished phone. The repair takes 1–3 days — we provide a loaner phone for that time.
Book a replacementYou message us on WhatsApp with the model and what happened — we give you the price and time. Or you come in without an appointment.
We check the power and charging circuit under a microscope: sometimes the connector or the battery is at fault, not the controller.
We note the model, the part (original or aftermarket), the price, the timeframe, and the warranty.
We open the factory packaging in front of you and check the number against the receipt.
We resolder the chip under a microscope. We will provide a replacement phone for the duration of the repair.
Charging from cable and computer, charge percentage, powering on. You pick up the phone and the receipt.
Technicians for iPhone, Mac, iPad, Apple Watch and AirPods repair.
Photo: Bakmukhammed S.
Photo: Galymzhan S.
Photo: Zhandos Sh.
Photo: Darkhan T.
Photo: Kudiret S.We swap the bottom flex if the port is loose or clogged with corrosion.
02A new battery goes in if the charge still holds poorly after the repair.
03We restore the power circuit when the fault runs deeper than a single chip.
04Corrosion is removed from the board and connectors if the phone went into water.
05The bottom flex also carries the microphone, so we check how it works.
06We measure the current draw if the phone gets hot or drains quickly.
iPhone 6s Power Controller Replacement in Astana With a Free Check
At iServices in Astana, iPhone 6s power controller replacement starts with a free 15-minute check in front of you, so a bad port or battery is ruled out before any soldering. Our technicians work on the board under a microscope, fix the terms on the receipt, and give a warranty up to 1 year.
Charging on the iPhone 6s runs through a tiny component soldered to the board, and that component is what gets replaced in this service. Here is what it does and how it differs from the main power controller.
U2, also called Tristar, is the small component on the 6s mainboard that recognises the Lightning cable and controls how much current reaches the battery. It sits close to the port and talks to the accessory the moment you plug in: it reads the connector, confirms the handshake and then opens the path for current to flow toward the cell. A healthy U2 negotiates the right voltage for the pack and stops the flow once it is full, which is why a stable percentage on screen depends on this one part as much as on the battery itself. Because the same silicon handles the data line, a failing U2 can break syncing with a computer before topping up stops completely, so a lead that works for power is not proof the part is healthy.
The main power controller, or PMIC, distributes power across the whole handset, while U2 only manages the charging and USB side, so the two fail with different symptoms. The PMIC feeds the processor, the display, the radios and the memory rails; when it degrades, the device may shut down under load, restart in a loop or refuse to boot at all. U2 works on a narrower stretch of the circuitry: the Lightning port, the cable handshake and the incoming current, nothing more. A faulty U2 can drain the battery at rest even with nothing plugged in, because it keeps polling the port and never settles into standby. A PMIC fault usually shows up as the handset dying under load or not booting at all, whereas a U2 fault keeps it alive but leaves it unable to take a charge.
Owners of a 6s usually arrive with a mix of complaints: no charge, a frozen percentage, warmth near the socket. Read together, these signs narrow the fault to the board faster than any single symptom alone.
A battery icon that appears the moment you plug in, while the percentage never climbs, is one of the clearest signs that U2 is not passing current to the cell. The socket is recognised, the screen reacts, and the reading sits at the same figure for hours. U2 sits on the charging line between the port and the pack and governs how much current actually flows through. When the chip fails, the phone still sees a cable but receives almost nothing, so the figure freezes instead of dropping or rising. A tired pack behaves differently: it accepts charge slowly and loses it quickly, while a dead chip blocks the flow outright. This pattern is easy to misread as a worn battery, but a healthy unit paired with a failed U2 shows the same frozen number. Swapping the power source first wastes a part and leaves the real fault untouched.
A handset that loses charge overnight with the screen off and feels warm near the charging port is often leaking current through a damaged U2. The drain is steady rather than app-driven, and the standby figure falls by a wide margin even when nothing runs in the background. The warmth sits low on the chassis, close to the socket and the mainboard, not around the camera or the top edge. A shorted or partially failed chip keeps drawing power from the pack after the cable is removed, so it empties in standby and the circuitry heats up in the same spot. That warmth is the useful clue, because a healthy iPhone 6s stays cool in standby, so heat without any app running points at the circuitry rather than the software. Hold the device for a minute after unplugging: a warm patch near the port is worth showing an engineer.
Before any soldering, we have to prove the fault sits on the mainboard. Otherwise a new U2 chip changes nothing and you pay for work that never addressed the cause.
We run a free 15-minute check in front of you, and the engineer shows what is actually broken, even if you decide not to repair the phone. This is also where an iPhone 6s power controller replacement in Astana starts, so the diagnosis comes before any work. The engineer plugs a USB current tester between the lead and the Lightning connector, loads the circuitry with a known-good battery and watches the draw as the lead is flexed. A loose connector reads as a jumpy number; a dead U2 chip pulls a flat, low figure no matter how the lead sits. The same session covers corrosion around the socket and any swelling on the battery, and the engineer narrates each step on the bench rather than behind a closed door.
| Stage | What we look at | What a healthy result shows |
|---|---|---|
| Lead and socket check | Draw with a known-good lead | Stable figure, no drop when moved |
| Battery check | Charge behaviour on a test cell | Percentage climbs steadily |
| Microscope check | Corrosion or burn marks around U2 | Clean pads, neighbours intact |
| After the swap | Draw and lead recognition | Normal charge and sync restored |
A dead chip is almost always the result of a current spike rather than normal wear, so the useful question is where that surge came from and what to change in daily habits.
Unstable voltage from power banks, car adapters and non-original chargers is the most common reason U2 fails on an iPhone 6s. These accessories rarely hold a clean output: a cheap boost circuit inside a power bank can push a short surge when the phone negotiates a link, and an adapter fed by the alternator carries ripple the microchip was never designed for. A frayed Lightning cable adds its own problem, because every loose contact means a fresh reconnect and another jolt into the same component. The damage is cumulative rather than instant, so the chip keeps degrading with each session until charging or data transfer stops working. Practical advice is to use original or experienced power supplies and replace worn cables early, since a stable output protects the U2 microchip far better than any repair after failure.
This section covers what happens to the board on the workbench and what you take home afterwards: the soldering itself, the check that follows, and the papers that back the work.
We remove the old chip with a hot-air station and lower preheat, fit the replacement under a microscope, clean the flux and test the circuitry before assembly; board work takes 1 to 3 days. Every board joint is inspected under magnification before the shield goes back on. The lower preheat matters on a 6s mainboard because it spreads heat evenly, so the small parts next to the power controller are not lifted along with the chip. Ask for the microscope photos of the joint before assembly if you want to see the work yourself — we keep them for every board repair, and the same bench handles logic board jobs across the city.
After the repair we check 32 functions in about 10 minutes, including charging, cable recognition, network and the rest, and you leave with the receipt, the warranty card and the old part. The engineer runs the check with you at the counter, so you see the charging percentage climb and the cable register on screen rather than taking our word for it. Your photos, contacts and accounts stay untouched — no reset is needed for this repair, and we test the device with your own SIM. The old chip is handed back so you can see what was removed, and the warranty up to 1 year is written on the card rather than promised verbally. If a courier brings the phone in, the same card travels back with it.
The repair closes the loop, but the way you charge the phone afterwards decides how long the new component lasts. Five points worth keeping.
Did not find an answer? Message us on WhatsApp: an engineer replies, not a bot.
Ask a questionOften yes, while the battery still holds charge, but it no longer charges properly. Once the battery is flat, the iPhone 6s cannot be revived until the chip is replaced. Back up your data while the phone still works.
The message can come from a damaged cable, lint in the port or a fault in the U2 chip that checks the accessory. Try another experienced cable and clean the port gently first. If the message stays, the board needs testing.
Yes, the chip also handles data over the Lightning port, so a faulty U2 can stop the computer from seeing the iPhone 6s. That makes backups and updates by cable impossible until the repair.
It is one of the possible reasons, as a damaged chip can draw current even when the screen is off. A worn battery gives a similar picture, so the engineer measures the current draw before deciding which part is at fault.
Better not, because unstable car and market chargers are a common reason the chip burns out. Use a experienced cable and a decent adapter. That protects the new chip and the battery alike.
Charge it from a wall adapter, then connect it to a computer and see that it is recognised. Watch the percentage rise and check that the cable sits firmly. You do these checks together with the engineer in Astana.
Проблема — грееться при зарядке. Работает, как будто и не ломалось. Работает, даже лучше прежнего.
Проблема — греется при зарядке. Бақмухаммед С. показал старую деталь, всё прозрачно. Функционирует, тьфу-тьфу.
Друг посоветовал, у него после воды ноут подняли. Оставил на зарядке на ночь, утром — Home не работает. Приняли вечером, хотя до закрытия было минут десять. Вышло из строя: кнопка. Кнопку Home заменили, нажимается. Квитанцию потеряли, пришлось восстанавливать. Дома включил, всё на месте.
Утром включил, а у него хрипит динамик. Мастер сам предложил забрать технику позже. Внутри оказалас: аккумулятор. После ремонта — как новое.
Проблема — не заряжается выше 80. Бақмухаммед С. разобрался в редкой модели. Всё чётко, без сюрпризов.
Знакомый мастер раньше работал с Apple, дал наводку. Оставил на зарядке на ночь, утром — чёрный кадр. Экран яркий, батарея держит.
Жұмыстан кейін баруға болатын жер керек еді. Экран сынып қалды, көрсетуге апардым. Мастер бәрін түсіндірді. Диагностика тегін болды. Кепілдік берді, бұл маңызды. Ескі бөлшекті көрсетіп, қайтарып берді. Жұмыс істеп тұр, шағым жоқ
Работаю рядом, заехала в обед. Залила чаем, и через день — треснул экран. Мастер сам предложил забрать технику позже. Внутри оказалось: камера. Спасибо, что выручили. Ни разу не пожалела.
В Астана сервисов много, но по Apple берут не все. Проблема — не заряжаеться. Экран яркий, батарея держит.
Оставила на зарядке на ночь, утром — не работает камера. Ғалымжан С. провозился, но сделал. Мастер сам предложил забрать технику позже. Внутри оказалось: аккумулятор. Вышло около 30 500, точнее не считала. Достойно сделали. Проверила на всех режимах — держит.
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