diff --git a/front-generator/template/common/admin-methods.js.j2 b/front-generator/template/common/admin-methods.js.j2
index 407738b..b7863f7 100644
--- a/front-generator/template/common/admin-methods.js.j2
+++ b/front-generator/template/common/admin-methods.js.j2
@@ -52,6 +52,18 @@
                 }
                 this.submitStatus.firmwareUpgrade = false
             },
+            {% if modem == 'tdma' %}
+            async settingsPerformFirmwareUpgradeOta() {
+                if (this.submitStatus.firmwareUpgradeOta) { return }
+                this.submitStatus.firmwareUpgradeOta = true
+                try {
+                    await fetch('/api/doFirmwareUpgrade?ota=1', { method: 'POST' })
+                } catch (e) {
+                    console.log("failed to perform upgrade firmware: ", e)
+                }
+                this.submitStatus.firmwareUpgradeOta = false
+            },
+            {% endif %}
 
             doModemReboot() {
                 if (this.submitStatus.modemReboot !== null) {
diff --git a/front-generator/template/common/admin.html.j2 b/front-generator/template/common/admin.html.j2
index b02e1d9..3eedc7c 100644
--- a/front-generator/template/common/admin.html.j2
+++ b/front-generator/template/common/admin.html.j2
@@ -21,14 +21,21 @@
                 <div>
                     <button class="dangerous-button" onclick="fetch('/api/resetSettings', { method: 'POST' }).then((r) => { window.location.reload(); })">Сбросить модем до заводских настроек</button>
                 </div>
+            </div>
 
-                <h3>Обновление ПО</h3>
+            <h2>Обновление ПО</h2>
+            <div class="settings-set-container statistics-container">
+                <h3>Ручное обновление</h3>
                 <label>
                     <span>Файл {{ this.uploadFw.progress !== null ? `(${this.uploadFw.progress}%)` : '' }}</span>
                     <input type="file" accept="application/zip" @change="(e) => { this.uploadFw.filename = e.target.files[0] }">
                     <span v-if="uploadFw.sha256 !== null">SHA256: {{ uploadFw.sha256 }}</span>
                 </label>
                 <button class="action-button" @click="settingsUploadUpdate()">Загрузить<span class="submit-spinner" v-show="submitStatus.firmwareUpload"></span></button>
-                <button class="dangerous-button" v-show="uploadFw.sha256 !== null" @click="settingsPerformFirmwareUpgrade()">Обновить встроенное ПО <span class="submit-spinner" v-show="submitStatus.firmwareUpgrade"></span></button>
-            </div>{% endraw %}
+                <button class="dangerous-button" v-show="uploadFw.sha256 !== null" @click="settingsPerformFirmwareUpgrade()">Обновить встроенное ПО<span class="submit-spinner" v-show="submitStatus.firmwareUpgrade"></span></button>
+                {% endraw %}{% if modem == 'tdma' %}
+                <h3 v-show="statDevice.upgradePercent >= 100">Обновление "по воздуху"</h3>
+                <button class="dangerous-button" v-show="statDevice.upgradePercent >= 100" @click="settingsPerformFirmwareUpgradeOta()">Обновить встроенное ПО<span class="submit-spinner" v-show="submitStatus.firmwareUpgradeOta"></span></button>
+                {% endif %}
+            </div>
         </div>
diff --git a/front-generator/template/main.html b/front-generator/template/main.html
index 1d3c261..9712063 100644
--- a/front-generator/template/main.html
+++ b/front-generator/template/main.html
@@ -97,6 +97,9 @@
                     {% endfor %}
                     firmwareUpload: false,
                     firmwareUpgrade: false,
+                    {% if modem == 'tdma' %}
+                    firmwareUpgradeOta: false,
+                    {% endif %}
                     // когда модем перезагружается, тут должен быть счетчик. Направление счета - к нулю
                     modemReboot: null
                 },
diff --git a/src/main.cpp b/src/main.cpp
index e41a004..73c2f30 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -26,6 +26,7 @@ namespace ssl = boost::asio::ssl; // from <boost/asio/ssl.hpp>
 
 constexpr const char* REBOOT_COMMAND = "web-action reboot";
 constexpr const char* UPGRADE_COMMAND = "web-action upgrade";
+constexpr const char* FIRMWARE_LOCATION = "/tmp/firmware.zip";
 
 
 namespace mime_types = http::server::mime_types;
@@ -63,7 +64,7 @@ class ServerResources {
     bool upgradeOrRebootRunning = false;
 
     static void onUploadFirmware(const http::server::Request& req) {
-        std::ofstream f("/tmp/firmware.zip", std::ios::binary);
+        std::ofstream f(FIRMWARE_LOCATION, std::ios::binary);
 
         if (f.is_open()) {
             f.write(req.payload.data(), static_cast<long>(req.payload.size()));
@@ -76,11 +77,27 @@ class ServerResources {
     void doTerminalUpgrade() const {
         api->executeInApi([](TSID sid) {
             CP_SetDmaDebug(sid, "begin_save_config", "");
-            system(UPGRADE_COMMAND);
+            std::string cmd(UPGRADE_COMMAND);
+            cmd += " ";
+            cmd += FIRMWARE_LOCATION;
+            system(cmd.c_str());
             CP_SetDmaDebug(sid, "save_config", "");
         });
     }
 
+#ifdef MODEM_IS_TDMA
+    void doTerminalUpgradeOta() const {
+        api->executeInApi([&](TSID sid) {
+            CP_SetDmaDebug(sid, "begin_save_config", "");
+            std::string cmd(UPGRADE_COMMAND);
+            cmd += " ";
+            cmd += api->getOtaFileLocation();
+            system(cmd.c_str());
+            CP_SetDmaDebug(sid, "save_config", "");
+        });
+    }
+#endif
+
 public:
 #if defined(MODEM_IS_TDMA)
     static constexpr const char* INDEX_HTML = "/main-tdma.html";
@@ -432,7 +449,15 @@ public:
                 return;
             }
             this->upgradeOrRebootRunning = true;
+#ifdef MODEM_IS_TDMA
+            if (req.url->params.find("ota") != req.url->params.end()) {
+                doTerminalUpgradeOta();
+            } else {
+                doTerminalUpgrade();
+            }
+#else
             doTerminalUpgrade();
+#endif
             rep.status = http::server::ok;
             rep.headers.clear();
             rep.headers.push_back({.name = "Content-Type", .value = toString(mime_types::json)});
diff --git a/src/terminal_api_driver.cpp b/src/terminal_api_driver.cpp
index d39f59c..584c454 100644
--- a/src/terminal_api_driver.cpp
+++ b/src/terminal_api_driver.cpp
@@ -1377,6 +1377,15 @@ void api_driver::ApiDriver::executeInApi(const std::function<void(TSID sid)>& ca
         BOOST_LOG_TRIVIAL(error) << "ApiDriver::executeInApi(): failed to exec with error: " << e.what();
     }
 }
+
+#ifdef MODEM_IS_TDMA
+std::string api_driver::ApiDriver::getOtaFileLocation() const {
+    device_state s{};
+    daemon->getState(nullptr, nullptr, &s);
+    return s.cur_image;
+}
+#endif
+
 #ifdef MODEM_IS_SCPC
 std::string api_driver::ApiDriver::getLoggingStatisticsSettings() {
     return this->daemon->statsLogs.getSettings();
diff --git a/src/terminal_api_driver.h b/src/terminal_api_driver.h
index 83a2515..3b5a255 100644
--- a/src/terminal_api_driver.h
+++ b/src/terminal_api_driver.h
@@ -87,6 +87,10 @@ namespace api_driver {
         void readLoggingStatistics(std::vector<uint8_t>& out, int timeStart = -1, int timeEnd = -1, bool ordering = false, int maxItems = -1);
 #endif
 
+#ifdef MODEM_IS_TDMA
+        std::string getOtaFileLocation() const;
+#endif
+
         static std::string loadSysInfo();
 
         ~ApiDriver();
diff --git a/static/main-scpc.html b/static/main-scpc.html
index 08fbbc2..d3a2815 100644
--- a/static/main-scpc.html
+++ b/static/main-scpc.html
@@ -538,16 +538,20 @@
                 <div>
                     <button class="dangerous-button" onclick="fetch('/api/resetSettings', { method: 'POST' }).then((r) => { window.location.reload(); })">Сбросить модем до заводских настроек</button>
                 </div>
+            </div>
 
-                <h3>Обновление ПО</h3>
+            <h2>Обновление ПО</h2>
+            <div class="settings-set-container statistics-container">
+                <h3>Ручное обновление</h3>
                 <label>
                     <span>Файл {{ this.uploadFw.progress !== null ? `(${this.uploadFw.progress}%)` : '' }}</span>
                     <input type="file" accept="application/zip" @change="(e) => { this.uploadFw.filename = e.target.files[0] }">
                     <span v-if="uploadFw.sha256 !== null">SHA256: {{ uploadFw.sha256 }}</span>
                 </label>
                 <button class="action-button" @click="settingsUploadUpdate()">Загрузить<span class="submit-spinner" v-show="submitStatus.firmwareUpload"></span></button>
-                <button class="dangerous-button" v-show="uploadFw.sha256 !== null" @click="settingsPerformFirmwareUpgrade()">Обновить встроенное ПО <span class="submit-spinner" v-show="submitStatus.firmwareUpgrade"></span></button>
-            </div>        </div>
+                <button class="dangerous-button" v-show="uploadFw.sha256 !== null" @click="settingsPerformFirmwareUpgrade()">Обновить встроенное ПО<span class="submit-spinner" v-show="submitStatus.firmwareUpgrade"></span></button>
+            </div>
+        </div>
         <p>Последнее обновление статистики: {{ lastUpdateTime }}</p>
     </div>
 </div>
diff --git a/static/main-tdma.html b/static/main-tdma.html
index 0c35651..5c6a5fc 100644
--- a/static/main-tdma.html
+++ b/static/main-tdma.html
@@ -274,16 +274,22 @@
                 <div>
                     <button class="dangerous-button" onclick="fetch('/api/resetSettings', { method: 'POST' }).then((r) => { window.location.reload(); })">Сбросить модем до заводских настроек</button>
                 </div>
+            </div>
 
-                <h3>Обновление ПО</h3>
+            <h2>Обновление ПО</h2>
+            <div class="settings-set-container statistics-container">
+                <h3>Ручное обновление</h3>
                 <label>
                     <span>Файл {{ this.uploadFw.progress !== null ? `(${this.uploadFw.progress}%)` : '' }}</span>
                     <input type="file" accept="application/zip" @change="(e) => { this.uploadFw.filename = e.target.files[0] }">
                     <span v-if="uploadFw.sha256 !== null">SHA256: {{ uploadFw.sha256 }}</span>
                 </label>
                 <button class="action-button" @click="settingsUploadUpdate()">Загрузить<span class="submit-spinner" v-show="submitStatus.firmwareUpload"></span></button>
-                <button class="dangerous-button" v-show="uploadFw.sha256 !== null" @click="settingsPerformFirmwareUpgrade()">Обновить встроенное ПО <span class="submit-spinner" v-show="submitStatus.firmwareUpgrade"></span></button>
-            </div>        </div>
+                <button class="dangerous-button" v-show="uploadFw.sha256 !== null" @click="settingsPerformFirmwareUpgrade()">Обновить встроенное ПО<span class="submit-spinner" v-show="submitStatus.firmwareUpgrade"></span></button>
+                <h3 v-show="statDevice.upgradePercent >= 100">Обновление "по воздуху"</h3>
+                <button class="dangerous-button" v-show="statDevice.upgradePercent >= 100" @click="settingsPerformFirmwareUpgradeOta()">Обновить встроенное ПО<span class="submit-spinner" v-show="submitStatus.firmwareUpgradeOta"></span></button>
+            </div>
+        </div>
         <p>Последнее обновление статистики: {{ lastUpdateTime }}</p>
     </div>
 </div>
@@ -326,6 +332,7 @@
                     network: false,
                     firmwareUpload: false,
                     firmwareUpgrade: false,
+                    firmwareUpgradeOta: false,
                     // когда модем перезагружается, тут должен быть счетчик. Направление счета - к нулю
                     modemReboot: null
                 },
@@ -744,6 +751,16 @@
                 }
                 this.submitStatus.firmwareUpgrade = false
             },
+            async settingsPerformFirmwareUpgradeOta() {
+                if (this.submitStatus.firmwareUpgradeOta) { return }
+                this.submitStatus.firmwareUpgradeOta = true
+                try {
+                    await fetch('/api/doFirmwareUpgrade?ota=1', { method: 'POST' })
+                } catch (e) {
+                    console.log("failed to perform upgrade firmware: ", e)
+                }
+                this.submitStatus.firmwareUpgradeOta = false
+            },
 
             doModemReboot() {
                 if (this.submitStatus.modemReboot !== null) {